Consulta: subjectFacets:"Cattle"
Registros recuperados: 389
Data/hora: 09/06/2024 17:24:59

Caracterización y análisis del abasto de carne de res a carnicerías en la ciudad de Xicotepec, Puebla.
Provedor de dados: 32
Autores: Dávila Robledo, José.
El consumo de carne de res es uno de los principales productos de la dieta de los mexicanos, sin embargo poco se sabe sobre sus procesos de comercialización, especialmente cuando se busca emitir recomendaciones a productores primarios. La presente investigación tuvo como objetivo identificar los productos, animales en pie y/o canales así como volúmenes y características que requieren las carnicerías y minisúper. La encuesta se realizó en la ciudad de Xicotepec, Puebla donde actualmente existen 19 expendios que comercializan carne de res y cerdo. Se aplicó un cuestionario cerrado a 15 carnicerías y un minisuper. Los resultados muestran que carnicerías en promedio necesitan 3 empleados para poder operar. El principal producto que prefieren adquirir son...
Palavras-chave: Canales; Ganado en pie; Características organolépticas; Competitividad; Diamante de Porter; Cattle; Sensorial characteristics; Competitiveness; Porter's diamond; Maestría Tecnológica; Agroindustria.
Ano: 2010
URL: http://hdl.handle.net/10521/328

Seroprevalencia y factores de riesgo asociados a brucelosis (Brucella abortus) en ganadería bovina de la zona sur de Veracruz, México.
Provedor de dados: 32
Autores: Aguilar Ballesteros, Gerardo.
El propósito del estudio fue estimar la seroprevalencia y factores de riesgo asociados a brucelosis bovina en la zona sur de Veracruz, México. Mediante un estudio epidemiológico de tipo transversal a través de un muestreo serológico de ganado bovino. La seroprevalencia se evaluó aplicando las pruebas de Tarjeta o Rosa de Bengala y Rivanol. Se realizó una encuesta por animal y por hato, generando dos bases de datos de los 12 municipios evaluados. Los resultados obtenidos mediante las pruebas de Tarjeta y Rivanol indican una seroprevalencia general del 0.187% (2/1066)  para la zona sur de Veracruz, de igual manera, se estimó un 2.4% (2/85) de hatos con ganado positivo a brucelosis. No fue posible el cálculo de factores de riesgo en este estudio a causa de la...
Palavras-chave: Brucelosis; Bovinos; Seroprevalencia; Factores de riesgo; Abortos; Salud animal; Brucellosis; Cattle; Seroprevalence; Risk factors; Abortions; Animal health; Agrosistemas Tropicales; Maestría.
Ano: 2010
URL: http://hdl.handle.net/10521/547

El mercado de la carne bovina en México, 1970-2011.
Provedor de dados: 32
Autores: Cruz Jiménez, Joaquín.
La proteína de origen animal es básica en la dieta de los mexicanos y las fuentes principales  de ésta son las carnes de ave, bovino y porcino, de las que en 2011 se consumieron 60 kilogramos por persona, correspondiendo a la de bovino 16.5 kilogramos. En este estudio se identifica a las principales variables determinantes del mercado de carne de bovino en México y se estima el efecto de dichas variables considerando los precios de importación de la carne y de maíz y sorgo. Para establecer y cuantificar el efecto sobre el mercado de sus principales variables determinantes se diseñó un modelo econométrico de ecuaciones simultáneas que fue estimado por mínimos cuadrados en dos etapas con información secundaria para el periodo de 1970 a 2011. Los resultados...
Palavras-chave: Bovino; Granos forrajeros; Elasticidad; Saldo de comercio; Oferta; Demanda; Cattle; Feed grains; Elasticity; Balance of trade; Supply; Demand; Economía; Doctorado.
Ano: 2013
URL: http://hdl.handle.net/10521/1881

Composición química y calidad de la carne de bovino en diferentes sistemas de alimentación del estado de Puebla.
Provedor de dados: 32
Autores: Torres Beltrán, Anayeli.
El objetivo fue evaluar la composición química y calidad de la carne de bovinos en diferentes sistemas de alimentación del estado de Puebla, México. Se realizó un muestreo en cuatro regiones: Trópico Este y Trópico Oeste donde la alimentación es en pastoreo más alimento concentrado y en el Centro y Mixteca, donde el sistema es estabulado con alimento concentrado. En cada región se definieron tres sitios y en cada uno se muestrearon 3 animales (n=36). Se evaluó el músculo Longissimus dorsi para determinar humedad, proteína, extracto etéreo (EE), cenizas, ácidos grasos, pH, color (L*a*b), capacidad de retención de agua (CRA), pérdida de agua por cocción (PPC), textura, y se colectó una muestra de sangre para determinar clenbuterol. En humedad, proteína y...
Palavras-chave: Acidos grasos; Bovinos; Calidad de carne; Clenbuterol; Cattle; Fatty acids; Meat quality; Estrategias para el Desarrollo Agrícola Regional; EDAR; Maestría.
Ano: 2013
URL: http://hdl.handle.net/10521/2201

Taninos de forraje de árboles y su efecto en producción y calidad de la carne de bovinos y ovinos.
Provedor de dados: 32
Autores: Velázquez Martínez, Mauricio.
Se evalúo el comportamiento productivo y calidad de la carne de toretes y corderos alimentados con taninos en la dieta. Se realizaron dos experimentos. En el primero, se usaron 27 toretes B. taurus x B. indicus (peso inicial 412.7±20 kg), asignados al azar a uno de tres tratamientos: dieta base (DB), dieta base + 2500 IU de vitamina E/animal/día (DVE), y dieta base + 3% (base seca) de taninos condensados de extracto de Quebracho (DEQ). Se evaluó consumo de materia seca (CMS), ganancia diaria de peso (GDP), conversión y eficiencia alimenticia, rendimiento en canal, color, pH, composición química y actividad de agua (Aw) de la carne. Las variables se analizaron en un diseño de bloques completos al azar usando el Proc GLM; y se estimaron las curvas de consumo...
Palavras-chave: Bovinos; Ovinos; Consumo; Carne; Canales; Quebracho; Antioxidante; Cattle; Lambs; Intake; Meat; Carcass; Antioxidant; Ganadería; Doctorado.
Ano: 2013
URL: http://hdl.handle.net/10521/1982

Comportamiento de ganado bovino de doble propósito pastando sitios con cobertura arbórea.
Provedor de dados: 32
Autores: Pérez Hernández, Víctor Manuel.
El objetivo fue evaluar el comportamiento y fisiología de ganado bovino de doble propósito pastando sitios con cobertura arbórea alta (CAA), baja (CAB) y sin cobertura (SCA), en las épocas de lluvia y sequía. Se observaron vacas adultas durante 24 días en cada época, registrando la temperatura corporal y los tiempos que dedicaron a las distintas actividades durante el día. Las vacas dedicaron el mismo tiempo al consumo en las lluvias (P &gt; 0.05), sin embargo, hubo mayor tiempo en CAB durante la sequía (P &lt; 0.0001). Durante las lluvias, las vacas en pastoreo bajo CAA mostraron menor motivación de irse al descanso o iniciar la rumia (P&lt;0.001), y mayor hacia la exploración que en otros tratamientos (P&lt;0.001); durante la sequía, aquellas pastando en...
Palavras-chave: Comportamiento; Cobertura arbórea; Ganado bovino; Estrés calórico; Behavior; Tree cover; Cattle; Heat stress; Agroecosistemas tropicales; Maestría.
Ano: 2012
URL: http://hdl.handle.net/10521/1702

Efecto de la pollinaza fermentada en estado sólido en el cambio de peso de toretes en pastoreo.
Provedor de dados: 32
Autores: May Arias, Germán.
Se realizo un ensayo de crecimiento con el objetivo de evaluar el efecto de la suplementación de la pollinaza fermentada (solida) en toretes en pastoreo, se utilizaron 32 toretes con un peso vivo (PV) promedio inicial de 234.3 ±.8 kg durante 107 días, distribuidos en dos tratamientos (T), tratamiento 1: Pastoreo + pollinaza fermentada y tratamiento 2: Pastoreo + pollinaza sin fermentar. Cada tratamiento tenía 4 corrales (repeticiones) con 4 animales por corral, se consideró al corral como una unidad experimental. El tratamiento (12 kg del suplemento base húmedo) se le suministró diariamente en el corral de 7:00 a 9:00, posteriormente, todos los animales salían a pastorear a la misma pradera. Los animales se pesaron cada mes durante tres días consecutivos....
Palavras-chave: Bovino; Suplementación; Pollinaza fermentada; Pastoreo; Trópico; Bulls; Supplementation; Chicken litter fermented; Grazing; Producción Agroalimentaria en el Trópico; Maestría; Cattle.
Ano: 2011
URL: http://hdl.handle.net/10521/606

Historical, Demographic, and Economic Correlates of Land-Use Change in the Republic of Panama
Provedor de dados: 7
Autores: Wright, Stuart Joseph; Smithsonian Tropical Research Institute; wrightj@si.edu; Samaniego, Mirna Julieta; Smithsonian Tropical Research Institute; samaniem@si.edu.
Tipo: Peer-Reviewed Reports
Palavras-chave: Agricultural income; Agriculture; Cattle; Deforestation; Forest transition; Land cover; Pasture; Plantation; Reforestation; Tropical forest.
Ano: 2008

Heat identification by 17&amp;#946;-estradiol and progesterone quantification in individual raw milk samples by enzyme immunoassay
Provedor de dados: 69
Autores: Domènech,Anna; Pich,Sara; Arís,Anna; Plasencia,Carmen; Bach,Alex; Serrano,Alicia.
Background: There is a substantial decline in first-service-pregnancy-rate in dairy cows. In this regard, future prospects are to measure milk hormones on-farm and progesterone levels in milk are not enough to precise ovulation unless connected to other data. The objectives of this study were to investigate whether 17&amp;#946;-estradiol could be measured from individual cow milk samples using a commercially available non-radiolabelled enzyme immunoassay kit (EIA) with no previously reported milk application, and whether those detections could precisely illustrate 17&amp;#946;-estradiol pre-ovulation peak in spite of its limited concentration and short manifestation in milk. Results: Milk sample treatments for progesterone and 17&amp;#946;-estradiol EIA...
Tipo: Journal article
Palavras-chave: Cattle; Estrous; Heat; Hormone; Insemination.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582011000400010

Environmental comfort in constructions for Sindi and Guzera calves in the agreste region of the State of Paraiba, Brazil
Provedor de dados: 70
Autores: Furtado,Dermeval A.; Peixoto,Adriana P.; Nascimento,José W. B. do; Regis,Jonh E. F.
The objective of this study was to evaluate the quality of air, bioclimatic indexes of facilities and physiological indices of Guzera and Sindhi calves, reared in climatic conditions of Agreste. The study was conducted at the experimental station of Alagoinha, PB, Brazil, using 16 calves of Sindi and Guzerá races. The average concentration of oxygen (20.85%), ammonia (1.99 ppm), carbon monoxide (&lt;0.01 ppm), methane (0.13 ppm) and hydrogen sulfide (&lt;0.01) within facilities, were within the limits established by the Brazilian and international standards, for both animals and workers. The bioclimatic index of temperature and humidity and the temperature of the black globe and humidity index were within the thermal comfort zone for cattle in most of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Environment; Cattle; Adaptability; Physiological responses.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000100001

ECONOMIC AND FINANCIAL VIABILITY OF DIGESTER USE IN CATTLE CONFINEMENT FOR BEEF
Provedor de dados: 70
Autores: Montoro,Stela B.; Santos,David F. L.; Lucas Junior,Jorge de.
ABSTRACT This research analyzes the economic and financial feasibility of implementing a biodigester for confinement of beef cattle on a farm located in the State of São Paulo, through the approach of discounted cash flow. The anaerobic digestion technology arouses interest, due to its advantages with the generation of electricity and the pollution reduction of water resources, soil and air, from the biogas and bio-fertilizer production, high value-added products to cattle raising. It was verified that the treatment system of cattle manure with biodigesters generate biogas and fertilizer as revenue, with free cash flows that enable a return on investment in 3.8 years and return an IRR 26.40% and an MIRR of 10.69%; all above than the minimum rate of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biogas; Biofertilizer; Cattle; Discounted cash flow.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000200353

Association of the bovine major histocompatibility complex (BoLA) BoLA-DRB3 gene with fat and protein production and somatic cell score in Brazilian Gyr dairy cattle (Bos indicus)
Provedor de dados: 74
Autores: Nascimento,Carlos Souza do; Machado,Marco Antonio; Martinez,Mario Luiz; Silva,Marcos Vinícius G. Barbosa da; Guimarães,Marta Fonseca Martins; Campos,Ana Lúcia; Azevedo,Ana Luisa Sousa; Teodoro,Roberto Luiz; Verneque,Rui da Silva; Guimarães,Simone Eliza Facioni; Oliveira,Denise Aparecida Andrade.
The effect of the bovine major histocompatibility complex (BoLA) locus on animal health may be due to a direct action of its alleles on immune functions, whereas its indirect effect on production traits might be explained by the better general health conditions of more productive animals. In the present study, the BoLA-DRB3 gene was investigated in 1058 cows belonging to seven Brazilian Gyr Dairy herds (Bos indicus, Zebu cattle). A total of 37 alleles were identified, 15 of them described for the first time in a Zebu breed. A highly significant association (p &lt; 0.02) was observed between allele *54 and a decrease (-26.1 kg) in milk protein yield and there was a significant association (p &lt; 0.05) between this allele and lower (-26.07 kg) milk fat...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Marker-assisted selection; Molecular markers; PCR-RFLP.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572006000400011

Phylogenetic position of an uncharacterized Brazilian strain of bovine papillomavirus in the genus Xipapillomavirus based on sequencing of the L1 open reading frame
Provedor de dados: 74
Autores: Lunardi,Michele; Claus,Marlise P.; Alfieri,Amauri A.; Fungaro,Maria Helena P.; Alfieri,Alice F.
The use of PCR assays with degenerate primers has suggested the existence of numerous as yet uncharacterized bovine papillomaviruses (BPV). Despite the endemic nature of BPV infections, the identification of BPV types in Brazilian cattle is still only sporadic. However, in a recent analysis of a partial segment of the L1 gene, we observed notable diversity among the BPV types detected. The aim of this study was to determine the phylogenetic position of the previously identified wild strain BPV/BR-UEL2 detected in the state of Paraná in Brazil. Since previous analysis of the partial L1 sequence had shown that this strain was most closely related to BPV type 4, genus-specific primers were designed. Phylogenetic analysis using complete L1 ORF sequences...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: BPV; Cattle; Cutaneous papillomatosis; Putative new BPV type; L1 gene.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000400022

Assessment of the myostatin Q204X allele using an allelic discrimination assay
Provedor de dados: 74
Autores: Sifuentes-Rincón,Ana M.; Puentes-Montiel,Herlinda E.; Moreno-Medina,Víctor R.; Rosa-Reyna,Xóchitl F. de la.
An allelic discrimination assay was designed and used to determine the genotypic and allelic frequencies of the myostatin (MSTN) gene Q204X allele from two Mexican Full-French herds. The assay is a simple high throughput genotyping method that could be applied to investigate the effect of the Q204X allele on the Charolais breed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Charolais; Carcass marker; Allelic form; SNP detection.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572006000300017

Zero-inflated Poisson regression models for QTL mapping applied to tick-resistance in a Gyr x Holstein F2 population
Provedor de dados: 74
Autores: Silva,Fabyano Fonseca; Tunin,Karen P.; Rosa,Guilherme J.M.; Silva,Marcos V.B. da; Azevedo,Ana Luisa Souza; Verneque,Rui da Silva; Machado,Marco Antonio; Packer,Irineu Umberto.
Nowadays, an important and interesting alternative in the control of tick-infestation in cattle is to select resistant animals, and identify the respective quantitative trait loci (QTLs) and DNA markers, for posterior use in breeding programs. The number of ticks/animal is characterized as a discrete-counting trait, which could potentially follow Poisson distribution. However, in the case of an excess of zeros, due to the occurrence of several noninfected animals, zero-inflated Poisson and generalized zero-inflated distribution (GZIP) may provide a better description of the data. Thus, the objective here was to compare through simulation, Poisson and ZIP models (simple and generalized) with classical approaches, for QTL mapping with counting phenotypes...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dairy; Cattle; Tick infestation; QTL regression; Generalized linear model.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000400008

Quantification of bovine cytokine gene expression using real-time RT-PCR methodology
Provedor de dados: 74
Autores: Zaros,Lilian Giotto; Bricarello,Patrízia Ana; Amarante,Alessandro Francisco Talamini; Coutinho,Luiz Lehmann.
T cells produce cytokines that affect host response to infection. This paper reports real-time RT-PCR conditions and validation steps for accurate quantification of Bos indicus cytokines, interleukin (IL)-2, IL-4, IL-8, IL12p-35, IL-13, tumoral necrosis factor (TNF)-alpha, interferon (IFN)-gamma, monocyte chemoattractant proteins (MCP)-1 and MCP-2, and the glycoprotein mucin (MUC)-1 in two groups of Nelore cattle, one resistant and the other susceptible to gastrointestinal nematode infections. RPL-19 was shown to be an ideal internal control gene, since its expression was constant across treatments and presented lower variation when compared to the GAPDH gene. The optimized conditions established in the present study can be used to determine the immune...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Cytokine gene expression; Real-time RT-PCR; Cattle; Gastrointestinal nematodes; Bovine cytokines.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000400012

Implementation of a parentage control system in Portuguese beef-cattle with a panel of microsatellite markers
Provedor de dados: 74
Autores: Carolino,Inês; Sousa,Conceição O.; Ferreira,Sónia; Carolino,Nuno; Silva,Fátima S.; Gama,Luís T.
A study was conducted to assess the feasibility of applying a panel of 10 microsatellite markers in parentage control of beef cattle in Portugal. In the first stage, DNA samples were collected from 475 randomly selected animals of the Charolais, Limousin and Preta breeds. Across breeds and genetic markers, means for average number of alleles, effective number of alleles, expected heterozygosity and polymorphic information content, were 8.20, 4.43, 0.733 and 0.70, respectively. Enlightenment from the various markers differed among breeds, but the set of 10 markers resulted in a combined probability above 0.9995 in the ability to exclude a random putative parent. The marker-set thus developed was later used for parentage control in a group of 140 calves from...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Genetic markers; Microsatellites; Parentage control.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000200017

Use of the TSPY gene for sexing cattle
Provedor de dados: 74
Autores: Lemos,Daniela Cristina; Rios,Álvaro Fabrício Lopes; Caetano,Lisandra Cristina; Lôbo,Raysildo Barbosa; Vila,Reginaldo Aparecido; Martelli,Lúcia; Takeuchi,Paula Lumy; Ramos,Ester Silveira.
The Y-encoded, testis-specific protein (TSPY) is a Y-specific gene. The copy numbers of TSPY range from 20 to 60 in men and up to 200 in bulls. In this study, we examined the possibility of using the TSPY gene to sex cattle. DNA from blood samples of 100 Nelore cattle (50 males and 50 females) from the Nelore Cattle Breeding Program (PMGRN) was screened for TSPY by PCR using TSPY-specific primers. The assay was highly specific since all male samples were TSPY-positive and all female samples were negative. Positive results were also obtained at low DNA concentrations (less than 1 rhog/muL). These results showed that TSPY was a good male-specific marker, the usefulness of which was enhanced by the high copy number of the gene. This is the first report to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Cattle; PCR; Sexing; TSPY.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000100020

Quantitative trait locus affecting birth weight on bovine chromosome 5 in a F2 Gyr x Holstein population
Provedor de dados: 74
Autores: Gasparin,Gustavo; Miyata,Marcelo; Coutinho,Luiz Lehmann; Martinez,Mário Luiz; Silva,Marcos Vinícius G. Barbosa da; Machado,Marco Antônio; Campos,Ana Lúcia; Regitano,Luciana Correia de Almeida.
Segregation between a genetic marker and a locus influencing a quantitative trait in a well delineated population is the basis for success in mapping quantitative trait loci (QTL). To detect bovine chromosome 5 (BTA5) birth weight QTL we genotyped 294 F2 Gyr (Bos indicus) x Holstein (Bos taurus) crossbreed cattle for five microsatellite markers. A linkage map was constructed for the markers and an interval analysis for the presence of QTL was performed. The linkage map indicated differences in the order of two markers relative to the reference map (&lt;A HREF="http://www.marc.usda.gov/"&gt;http://www.marc.usda.gov&lt;/A&gt;). Interval analysis detected a QTL controlling birth weight (p &lt; 0.01) at 69 centimorgans (cM) from the most centromeric marker...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: BTA5; Birth weight; Cattle; QTL; Microsatellite markers.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000500005

Analysis of tRNA halves (tsRNAs) in serum from cattle challenged with bovine viral diarrhea virus
Provedor de dados: 74
Autores: Taxis,Tasia M.; Bauermann,Fernando V.; Ridpath,Julia F.; Casas,Eduardo.
Abstract Acute infections of bovine viral diarrhea virus (BVDV) lead to a range of clinical presentations. Laboratory tests for detection depend on collection of samples during a short viremia. Acutely infected animals remain largely undiagnosed. Transfer RNA halves (tsRNAs) are hypothesized to function like microRNAs to regulate gene expression during an immune response. The objective of this study was to identify tsRNAs in cattle that had been challenged with a non-cytopathic field strain of BVDV. Colostrum-deprived neonatal Holstein calves were either challenged with BVDV (n=5) or mock challenged (n=4). Sera was collected prior to challenge and days 4, 9, and 16 post challenge. RNA was extracted and read counts of small non-coding RNAs were assessed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Bovine Viral Diarrhea Virus; Transfer RNA; Transfer RNA halves; Small non-coding RNA.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572019000300374

Parentage testing and effect of misidentification on the estimation of breeding value in Gir cattle
Provedor de dados: 74
Autores: Baron,Erica E.; Martinez,Mário L.; Verneque,Rui S.; Coutinho,Luiz L.
A correct relationship among sires is essential for an efficient breeding program. Microsatellite markers were used in progeny tests, to assess the paternity of seventy-four probable offspring of nine Gir dairy sires. A 36% misidentification rate was observed; however, these errors had minimal effects on the ranking of the nine bulls with regard to their genetic values. The results suggest that paternity tests should be performed in breeding programs, in order to prevent inappropriate paternities from influencing the genetic value of bulls in the future.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Microsatellite; Gir; Cattle; Breeding; Parentage; PCR.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572002000400006

Polymorphism of exon 2-3 of bovine major histocompatibility complex class I BoLa-A gene
Provedor de dados: 74
Autores: Bhushan,Bharat; Patra,Biswa Nath; Das,Pranab Jyoti; Dutt,Triveni; Kumar,Pushpendra; Sharma,Arjava; Umang,; Dandapat,Satyabarta; Ahlawat,Shiv Pal Singh.
The exon 2-3 region of bovine major histocompatibility complex (MHC) class I BoLa-A gene was investigated for polymorphisms in three breeds of cattle originated in the Indian subcontinent namely Sahiwal, Tharparkar, Hariana, as well as crossbred (Bos taurus x Bos indicus) cattle and Jersey, the exotic breed (Bos taurus). The PCR amplified fragment of 714 bp showed distinct DdeI-, TaqI- and HinfI- RFLP patterns, thus confirming a higher degree of polymorphism in this region. To our knowledge this is the first report of HinfI restriction patterns for BoLa-A exon 2-3. The sequencing results revealed a number of nucleotide substitutions in this region, which resulted in amino acid changes. The present investigation confirmed that MHC class I BoLa-A exon 2-3 is...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: MHC; BoLa-A polymorphism; Cattle.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000400009

Quantitative trait loci (QTL) mapping for growth traits on bovine chromosome 14
Provedor de dados: 74
Autores: Miyata,Marcelo; Gasparin,Gustavo; Coutinho,Luiz Lehmann; Martinez,Mario Luiz; Machado,Marco Antonio; Silva,Marcos Vinicius G. Barbosa da; Campos,Ana Lucia; Sonstegard,Tad S.; Rosário,Millor Fernandes do; Regitano,Luciana Correia de Almeida.
Quantitative trait loci (QTL) mapping in livestock allows the identification of genes that determine the genetic variation affecting traits of economic interest. We analyzed the birth weight and weight at 60 days QTL segregating on bovine chromosome BTA14 in a F2 resource population using genotypes produced from seven microsatellite markers. Phenotypes were derived from 346 F2 progeny produced from crossing Bos indicus Gyr x Holstein Bos taurus F1 parents. Interval analysis to detect QTL for birth weight revealed the presence of a QTL (p &lt; 0.05) at 1 centimorgan (cM) from the centromere with an additive effect of 1.210 ± 0.438 kg. Interval analysis for weight at 60 days revealed the presence of a QTL (p &lt; 0.05) at 0 cM from the centromere with an...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: TA14; Cattle; F2; Growth traits; Molecular markers; QTL.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000300011

Sistemas agrossilvopastoris e manejo de gado no semi-árido brasileiro.
Provedor de dados: 14
Autores: SALVIANO, L. M. C.
Trata sobre sistemas agrossilvopastoris e manejo de gado: sistemas agrossilviculturais, a pesquisa no semi-árido brasileiro, manejo de rebanhos no semi-árido brasileiro- caprinos e ovinos, bovinos de corte e bovinos de leite.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Nordeste; Região semi-árida; Sistema; Management; System; Northeast; Semi-arid region; Agrossilvicultura; Bovino; Manejo; Agroforestry; Cattle; Brazil.
Ano: 1989
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/133090

Uso de modelos matematicos de simulacao para estabelecimento de prioridades de pesquisa.
Provedor de dados: 14
Autores: AFFIN, O. A. D.; BARCELLOS, J. M.; LUIZ, A. J. B.; SILVA, F. A. M.; RODRIGUEZ CASTRO, L. H.; ZOBY, J. L. F.
bitstream/item/101483/1/doc-49.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Agropecuaria; Prioridade; Simulation.; Cerrado; Modelo Matemático; Pesquisa; Simulação.; Agriculture; Cattle; Research.; Mathematical models.
Ano: 1992
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/549460

"Mosca-dos-chifres", Haematobia irritans: diagnóstico e controle.
Provedor de dados: 14
Autores: SAUERESSIG, T. M.
bitstream/item/101736/1/doc-09.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Mosca-do-chifre; Horn fly; Bovine; Controle de doença; Mosca-dos-chifres.; Bovino; Doença Animal; Haematobia Irritans.; Animal diseases; Disease control.; Cattle.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/554972

Utilizacao da mistura multipla para gado na seca.
Provedor de dados: 14
Autores: LOPES, H. O. da S.; PEREIRA, E. A.
bitstream/item/121499/1/gtec-02.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Epoca seca; Mistura multipla.; Bovino; Cerrado; Nutrição Animal.; Animal feeding; Cattle; Dry season.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/545308

Raças mochas: história e genética.
Provedor de dados: 14
Autores: ROSA, A. do N.; SILVA, L. O. C. da; PORTO, J. C. A.
A anatomia do chifre e do batoque. O processo da herança. Raças mochas. Raças originalmente mochas. Teste de touros para o carater mocho.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Bovino mocho; Melhoramento genético; Polled.; Historia.; Animal breeding; Cattle; History.
Ano: 1992
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/324606

Recuperação e avaliação de espermatozóides obtidos de epidídimos bovinos resfriados por diferentes períodos (2009).
Provedor de dados: 14
Autores: FERRÃO, F. R.; SILVA, F. B. da; SCHWARZ, D. G. G.; OLIVEIRA, C. T. S. A. M. DE; SIQUEIRA, L. G. B.; BLUME, G. R.; COSTA, P. M.; MARTINS, C. F.
bitstream/item/78289/1/p2009-086.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Bovinae; Sperm; Gene bank.; Bovino; Banco de Germoplasma; Criopreservação; Espermatozóide; Reprodução Animal.; Animal breeding; Cattle; Cryopreservation; Germplasm.
Ano: 2009
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/737112

Estudo da origem e da ancestrabilidade paterna e materna de bovinos pantaneiros.
Provedor de dados: 14
Autores: SERENO, J. R. B.; ISSA, E. C.; JORGE, W.; CARMO, A. O. do.
bitstream/CPAC-2009/27872/1/p2006_80.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Bovinae.; Bovino; DNA; Gado; Genética Animal.; Pantanal; Brazil; Genetics.; Cattle.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/556435

Aspectos qualitativos do couro de novilho orgânica do Pantanal Sul-Mato-Grossense.
Provedor de dados: 14
Autores: JACINTO, M. A. C.; FORNARI, C. J. S.; FARIAS, F. J. C. de; TORRES, R. D.; MEDEIROS, E. M. C.
Produção de pele. Produção de couro. Avaliação da qualidade extrínseca (Pele) - estratificação do mercado com base nas características da peles. Avaliação da qualidade intrínseca (Couro) - ensaios físico-mecânicos e químicos. Metodologia. Curtimento, avaliação extrínseca e recurtimento das peles. Acabamento dos couros. Avaliação da qualidade intrínseca-ensaios físico-mecânicos e químicos. Delineamento experimental
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Avaliação; Mato Grosso do Sul; Brasil; Quality; Evaluation.; Bovino; Couro; Novilho; Pele; Qualidade.; Pantanal; Brazil; Cattle; Hides and skins; Leather; Steers.
Ano: 2005
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/326299

Carrapato, tristeza parasitaria e tripanossomose dos bovinos.
Provedor de dados: 14
Autores: KESSLER, R. H.; SCHENK, M. A. M.
Carrapato. O carrapato-do-boi Boophilus microplus: ciclo, biologia e epidemiologia, patogenia e controle. Tristeza parasitaria dos bovinos. Tristeza parasitaria dos bovinos (TPB): conceito, etiologia, transmissao, epidemiologia, diagnostico e controle. Imunidade contra Babesia e Anaplasma. Diagnostico parasitologico da tristeza parasitaria bovina. Diagnostico sorologico da tristeza parasitaria bovina. Diagnostico anatomopatologico da tristeza parasitaria bovina. Trpanossomose Trypanosoma vivax: biologia, diagnostico e controle. Imunidade contra Trypanosoma vivax.
Tipo: Livro técnico (INFOTECA-E)
Palavras-chave: Sanidade; Controle; Health; Tickes; Tickborne diseases; Biology; Control; Anaplasmose; Babesia Bigemina; Babesia Bovis; Biologia; Boophilus Microplus; Bovino; Carrapato; Parasitologia; Tripanossomíase; Tristeza Parasitaria; Trypanosoma Vivax; Anaplasmosis; Cattle; Parasitology.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/319034

Avaliacao de alguns fatores do meio que influenciam a adaptacao, o comportamento fisiologico e o desempenho de bovinos da raca Sindhi, nas condicoes ambientais do semi-arido brasileiro: relatorio parcial das atividades referentes ao periodo de 01/09/97 a 01/07/98.
Provedor de dados: 14
Autores: TURCO, S. H. N.
Este experimento esta sendo conduzido, no campo experimental da caatinga, Embrapa Semi-Arido, localizado no municipio de Petrolina-PE, regiao semi-arida do Nordeste brasileiro. Estao sendo utilizados 22 animais, da raca Sindhi, sendo dez femeas e doze machos, com idade variando de 1 a 4 anos. O manejo para todas as categorias animais e o mesmo utilizado pelo sistema de producao Embrapa Semi-Arido, onde sao manejadas, todo o periodo do experimento, em pastagem nativa (caatinga), durante dois a quatro meses e em pastagem cultivada (capim buffel), durante o restante do ano. As informacoes basicas para este trabalho foram: a) variaveis fisiologicas: temperatura retal (TR); temperatura da pele (TP); frequencia respiratoria (FR); b) variaveis anatomicas:...
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Rca Sindhi; Comportamento fisiologico; Adaptacao; Desempenho; Semi-Arido; Bovine; Behaviour; Adaptation; Bovino; Performance; Breeds; Cattle; Physiology.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/133625

INTEGRAÇÃO de pastejo rotacionado e anti-helmínticos no desempenho ponderal de bovinos.
Provedor de dados: 14
bitstream/item/38429/1/IntegracaoPastejoRotacionado.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Bovino; Anti-Helmíntico; Ganho de Peso; Pastejo Rotativo.; Cattle; Disease control; Helminths; Rotational grazing; Weight gain.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/377235

Lactus para Windows.
Provedor de dados: 14
Autores: MEIRA, C. A. A.
O "Lactus - Sistema para o Controle de Rebanho Leiteiro" é um programa de computador para apoiar o gerenclamerno do rebanho bovino de propriedades produtoras de leite, segundo recomendações de especialistas em sistemas de produção da Empresa Brasileira de Pesquisa Agropecuária (Embrapa). A primeira versão comercIal do Lactus, desenvolvida pela Embrapa Informática Agropecuária, foi feita para sistemas operacionais compatíveis com o MS-DOS. A atualização desta versão do Lactus para uma versão Windows tem como objetivo primário provê-lo de uma Interface moderna mais amigável, mais inteligível e intuitiva, mais rápida e eficiente e mais agradável. Visa também eliminar certas restrições que limitam os potenciais usuários do programa e facilitar os procedimentos...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Lactus para Windows; Sistema de controle de rebanho leiteiro; Software agropecuário; Agroinformática; Computer science; Cattle.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/6692

Resultados do controle de desenvolvimento ponderal - Raça Gir - 1976/1984.
Provedor de dados: 14
Autores: MATTOS, S. de; ROSA, A. do N.; NOBRE, P. R. C.; EUCLIDES FILHO, K.; MARIANTE, A. da S.; GUIMARAES, D. R.
A Raça Gir. Controle de desenvolvimento ponderal. Considerações sobre os resultados do controle de desenvolvimento ponderal das Raças Gir e Gir variedade Mocha. Controle ponderal das Raças Gir e Gir variedade mocha a nível nacional. Categorias de registro. Sexo. Regime alimentar. Ano de nascimento. Estação de nascimento. Mérito dos reprodutores. Controle ponderal da Raça Gir a nível de estado.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Gir; Desenvolvimento; Melhoramento genético.; Bovino; Performance; Peso.; Breeding; Cattle; Weight.
Ano: 1985
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/319481

Controle do carrapato por meio de vacina - situação atual e perspectivas.
Provedor de dados: 14
Autores: ANDREOTTI, R.; GOMES, A.; MALAVAZI-PIZA, K. C.; TANAKA, A. S.
Boophilus microplus causa grandes prejuízos econômicos à exploração pecuária no Brasil em função da espoliação dos bovinos, pela transmissão de patógenos, e do alto cursto operacional das técnicas atuais de controle. O combate sistemático ao carrapato do boi faz-se necessário, principalmente nos rebanhos de produção estabelecidos com base em raças européias ou mestiças. O uso de acaricidas ven sendo a medida de conrole profilático e terapêutico mais comum contra esses estoparasitos. Os principais problemas relacionados com essa prática dizem respeito ao desenvolvimento de linhagens resistentes de carrapatos frente a diversas geraçoes de acaricidas, ao aparecimento de resíduos químicos nos produtos de origem animal e à poluição ambiental proveniente do uso...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Controle; Aspecto econômico; Control; Economic situation.; Bovino; Boophilus Microplus; Carrapato; Sanidade Animal; Vacina.; Animal health; Cattle; Ticks; Vaccines.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/325566

Palestras e proposições.
Provedor de dados: 14
Autores: REUNIÕES TÉCNICAS SOBRE COUROS E PELES, 2001, Campo Grande, MS.
Reuniões técnicas sobre couros e peles. Programa melhoria e qualidade do couro. Benefícios fiscais como estímulo a industrialização do couro. O comércio do couro. O agronegócio das peles caprina e ovina. Desenvolvimento do agronegócio de peles e couros de especies silvestres. Couro no Estado do Pará. Aspectos da cadeia produtiva do couro bovino no Brasil e em Mato Grosso do Sul. Proposta metodológica para o Estudo de cadeias produtivas agroindustrias. Produção de couros. A pele animal e os comportamentos mercadológicos para o novo milênio. Sistemas integrados de produção de peles e couros no Brasil.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Aspecto econômico; Animal silvestre; Para; Mato Grosso do Sul; Brasil; Quality; Economic situation; Agroindustrial complexes; Market.; Cadeia Produtiva; Bovino; Comercio; Caprino; Couro; Mercado; Ovino; Qualidade.; Cattle; Goats; Brazil; Leather; Trade; Sheep; Wild animals.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/318248

Efeito do tratamento anti-helmintico no ganho de peso de bezerros holandes-zebu em aleitamento em Rondonia.
Provedor de dados: 14
Autores: SILVA NETTO, F. G. da; FILHO, A. B. de L.; FAGUNDES FILHO, J. J.
Procurou-se determinar melhor esquema de medicacao anti-helmintica para controle da verminose de bezerros na fase de aleitamento das bacias leiteiras de Rondonia. Experimento conduzido na fazenda Santa Rita de Cassia, municipio de Porto Velho-RO, no periodo de janeiro a setembro/1985. Concluiu-se que bezerros em aleitamento tratados com tres esquemas de medicacao anti-helmintica, de amplo espectro de acao, ganharam mais peso que animais nao tratados e criados nas mesmas condicoes. Os esquemas de vermifugacao a cada 45, 60 e 90 dias aliados a suplementacao alimentar volumosa e mineral em condicoes de baixa infestacao da pastagem, demostraram eficacia, proporcionando maior rentabilidade em relacao a testemunha. Demais categorias animais da propriedade...
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Anti helmintico; Nematodeo; Brasil; Rondonia; Porto Velho; Parasite; Animal; Bezerro; Bovino; Gado; Helminto; Verminose; Brazil; Cattle.
Ano: 1990
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/682904

Sal mineral com superfosfato triplo para bovinos.
Provedor de dados: 14
Autores: LOPES, H. O. da S.; PEREIRA, E. A.
bitstream/item/121715/1/gtec-40.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Supplements; Mineral nutrients.; Bovino; Cerrado; Fosfato; Nutriente Mineral; Sais Minerais; Superfosfato Triplo; Suplemento Mineral.; Cattle; Phosphates; Superphosphate.; Salts.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/546160

Alternativas de manejo de pastagem para melhor aproveitamento do nitrogênio do solo.
Provedor de dados: 14
Autores: SCHUNKE, R. M.
Neste documento propoê-se que um manejo de pastagem eficiente poderá aumentar o aporte de nitrogênio a esses sistemas de produçã, garantindo a sua sustentabilidade. Tal manejo envolve a escolha da espécie forrageira apropriada e a manutenção da fertilidade do solo, aliada ao aumento da biodiversidade que pode ser alcançada com o uso de leguminosas fixadoras de nitrogênio atmosférico. Envolve tambem um manejo animal adequado no que se refere a carga e ao diferimento dela. Esse conjunto de ações, que possibilitarão a regulação da mineralização do N em diversos sistemas de utilização das pastagens, por meio da manipulação das entradas e saídas no N nos diversos compartimentos do ciclo do elemento, será o caminho para se garantir a sustentabilidade dessas...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Consorciação; Management; Mixed pastures.; Adubação; Bovino; Fixação de Nitrogênio; Manejo; Pastagem.; Cattle; Fertilizer application; Pastures.; Nitrogen fixation.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/320939

Sal mineral com ureia para bovinos na epoca seca.
Provedor de dados: 14
Autores: LOPES, H. O. da S.
bitstream/item/105884/1/comtec-37.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Epoca seca; Brasil; Supplementary feeding; Alimentação mineral; Bovine; Sal mineral; Suplementação.; Bovino; Cerrado; Nutrição Animal; Sais Minerais; Suplemento Energético; Uréia.; Suplemento Alimentar; Animal nutrition; Dry season; Brazil; Cattle; Salts; Urea.
Ano: 1984
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/547878

Brucelose e tuberculose bovina: epidemiologia, controle e diagnóstico.
Provedor de dados: 14
Autores: ALMEIDA, R. F. C. de; SOARES, C. O.; ARAÚJO, F. R. de.
Cap. 1: Brucelose bovina: epidemiologia e controle. Cap. 2: Brucelose bovina: diagnóstico. Cap. 3: Tuberculose bovina: epidemiologia e controle. Cap. 4: Tiberculose bovina: diagnóstico.
Tipo: Livro técnico (INFOTECA-E)
Palavras-chave: Controle; Diagnosis; Control.; Bovino; Brucelose; Diagnostico; Doença Animal; Epidemiologia; Sanidade Animal; Tuberculose.; Animal health; Animal diseases; Epidemiology; Brucellosis; Cattle; Tuberculosis.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/325789

Orçamento forrageiro anual: orientações para o planejamento do uso dos recursos forrageiros disponíveis na propriedade rural.
Provedor de dados: 14
Autores: CAVALCANTE, A. C. R.
bitstream/item/132608/1/CNPC-2015-Orcamento.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Orçamento forrageiro; Planejamento alimentar; Feed crops.; Alimento para animal; Nutrição animal; Pastagem; Forragem; Bovino.; Caprino; Ovino; Forage; Brazil.; Forage production; Animal feeding; Goats; Sheep; Cattle; Animal nutrition; Semiarid zones.
Ano: 2015
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1028086

Predadores e parasitoides associados a entomofauna presente em fezes bovinas em areas de pastagens de Campo Grande, MS.
Provedor de dados: 14
Autores: KOLLER, W. W.; GOMES, A.; RODRIGUES, S. R.; RODRIGUES, A. C. L.; PENTEADO-DIAS, A.M.; MENDES, J.
bitstream/item/132423/1/COT-58.pdf.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Campo Grande; Mato Grosso do Sul; Brasil; Faeces.; Bovino; Entomofauna; Fezes; Parasito; Pastagem; Predador.; Entomology; Cattle; Brazil; Predators.; Parasites; Pastures.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/323403

Modelagem de sistemas no CPA Trópico Úmido.
Provedor de dados: 14
Autores: DUTRA, S.; KITAMURA, P. C.
bitstream/item/197899/1/FL01584.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Manejo de pastagem; Engorda de gado; Grassland management; Fattening; Modelo de Simulação; Cattle; Simulation models.
Ano: 1982
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/375586

Brucelose: uma ameaça para a pecuária em áreas de fronteira agrícola da Amazônia.
Provedor de dados: 14
Autores: LAU, H. D.
bitstream/item/34707/1/RecBas-33.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Controle de doenca; Brasil; Brucelosis; Symptoms.; Bovino; Brucelose; Sintoma.; Amazonia; Cattle; Disease control.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/375238

Modelos matematicos de simulacao e a dinamica populacional de rebanho bovino.
Provedor de dados: 14
Autores: AFFIN, O. A. D.; SANTOS, N. A. dos; BARCELLOS, J. M.
bitstream/item/101496/1/doc-57.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Agropecuaria; Simulation.; Bovino; Dinâmica Populacional; Modelo Matemático; Pesquisa; Simulação.; Agriculture; Cattle; Mathematical models; Population dynamics; Research.
Ano: 1994
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/549101

A tecnologia de microarranjos na identificação de genes de interesse na bovinocultura.
Provedor de dados: 14
Autores: GIACHETTO, P. F.
Como ferramenta de análise da expressão gênica, a tecnologia dos microarranjos de DNA permite a investigação de milhares de transcritos de um tecido, de maneira simultânea. Essa metodologia tem revolucionado diversas áreas do conhecimento, por meio do aumento substancial da capacidade analítica dos processos moleculares. Hoje, dentro da ciência animal, a disponibilidade desse método de investigação tem permitido aos pesquisadores identificar variações na expressão de determinados genes que possam ocorrer como respostas biológicas devido à condição experimental (idade, raça, estado fisiológico). Sob um aspecto prático, essa tecnologia tem seu papel na identificação de genes envolvidos na determinação de características fenotípicas de interesse econômico, os...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Tecnologia de microarranjos de DNA; Expressão gênica.; Bovinocultura.; Microarray technology; Gene expression; Cattle.
Ano: 2010
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/885253

Região geoeconômica de Brasília, DF: caracterização do setor agropecuário.
Provedor de dados: 14
Autores: FRANZ, P. R. F.; TORCHELLI, J. C.
O trabalho visa preencher uma lacuna ressentida pelo CPAC, quanto aos estudos socioeconomicos na sua area de influencia. Foi desenvolvido, inicialmente, na Regiao Oeoeconomica de Brasilia, mas podera ser estendido as demais regioes dos Cerrado. Trata-se de instrumento expedito e economico, que pode ser utilizado, como um marco de referencia do ponto de vista metodologico, visando a atualizacao constante dos conhecimentos, em termos de caracterizacao, analise e giagnostico do setor agropecuario. A regiao Oeoeconomica (RGE) de Brasilia abrange 235.592 km2 (11,6% de toda a regiao do Cerrado) e 89 municipios mais o Distrito Federal (10,3% dos municipios da regiao dos Cerrados). Esta regiao, polarizada por Brasilia, e importante, gracas as suas caracteristicas...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Desenvolvimento regional; Agropecuaria; Aspecto socio-economico; Regiao geoeconomica de Brasilia; Brasil; Regional development; Socieconomic organization.; Agricultor; Cerrado; Uso da Terra.; Agriculture; Cattle; Brazil; Farmers; Land use.
Ano: 1985
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/547611

O processo de comunicação na difusão da tecnologia de controle biológico da mosca-dos-chifres com o besouro Onthophagus gazzela em Rondônia.
Provedor de dados: 14
Autores: OLIVEIRA, V. B. V.; ROSA NETO, C.; FERNANDES, S. R.
Estudou-se o processo de comunicação utilizada pela Embrapa ROndônia na difusão e transferência da tecnologia do controle biológico da mosca-dos-chifres (Haematobia irritans) em rebanho bovino. O controle é feito com a utilização do besouro Onthophagus gazzel, vulgarmente conhecido como "rola-bosta". O besouro fez o enterro das fezes dos animais, tornando desfavoráveis as condições para o desenvolvimento das larvas da mosca-dos-chifres, contribuindo assim para a racionalização do uso de inseticidas no combate a esta praga. A propagação e distribuição do besouro, desde 1991, vem sendo feita utilizando-se diversas formas de comunicação para a transferência da tecnologia tais como: visitas, reuniões, palestras e dias de campo. Utilizando o método do estudo de...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Besouro Rola Bosta; Embrapa Rondônia; Porto Velho (RO); Rondônia; Amazônia Ocidental; Western Amazon.; Brown dung beetle; Horn fly; Besouro africano; Transferência de Tecnologia; Difusão de Tecnologia; Mosca dos Chifres; Parasito de Animal; Haematobia Irritans; Controle Biológico; Gado; Inseto Para Controle Biológico.; Biological control agents.; Technology transfer; Onthophagus gazella; Cattle; Ectoparasites.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/703116

Prevalencia de tuberculose, cisticercose e hidatidose em bovinos abatidos nos matadouros-frigorificos do estado de Mato Grosso do Sul, Brasil (1974/1979).
Provedor de dados: 14
Autores: SCHENK, M. A. M.; SCHENK, J. A. P.
bitstream/item/139539/1/COT-11.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Sanidade; Brasil; Mato Grosso do Sul; Echinocorccosis; Health; Disease; Abattoir; Slaughtering.; Abatedouro; Abate; Bovino; Cisticercose; Doença; Hidatidose; Tuberculose.; Brazil; Cysticercosis; Cattle; Tuberculosis.
Ano: 1982
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/320644

Uso do milheto como planta forrageira.
Provedor de dados: 14
Autores: KICHEL, A. N.; MIRANDA, C. H. B.
Plantio e manejo. Adubação. Semeadura. Manejo. Principais usos do milheto como planta forrageira. Produção de forragem para pastejo, em plantio de safrinha. Implantação e recuperação de pastagens. Uso de milheto como silagem.
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Alimentação animal; Brasil Central; Feed grasses; Cultivation; Management; Central of Brazil.; Bovino; Gramínea Forrageira; Manejo; Milheto; Plantio.; Animal nutrition; Cattle; Millets.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/325250

O uso do superfosfato triplo e do map na mineralizacao dos rebanhos.
Provedor de dados: 14
Autores: GUIMARAES FILHO, C.
bitstream/CPATSA/7275/1/INT8.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Uso.; Produção animal; Mineralização; Pecuária; Superfosfato Triplo.; Animal production; Adenosine triphosphate; Cattle; Livestock; Mineralization.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/132176

Parte aérea da mandioca na alimentação animal. II. O farelo da parte aérea na silagem do capim-elefante.
Provedor de dados: 14
Autores: CARVALHO, J. L. H. de; PEREIRA, E. A.; COSTA, I. R. S.
A inviabilidade economica da ensilagem de milho na regiao dos cerrados, devido aos custos muito elevados de insumos necessarios para a sua producao, leva os pecuaristas a ensilar outras forragens. Durante as forragens mais empregadas para ensilagem na regiao, destaca-se o capim-elefante (Pennisetum pupureum Shum) por ser uma graminea de porte grande, de boa producao de massa verde por hectare e bem difundida no meio rural.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Planaltina; Distrito Federal; Brasil.; Bovino; Capim Elefante; Cerrado; Farelo; Folha; Mandioca; Manihot Esculenta; Parte Aérea; Nutrição Animal; Pennisetum Purpureum; Silagem.; Animal nutrition; Aerial parts; Animal feeding; Brazil; Bran; Cassava; Cattle; Leaves; Silage.
Ano: 1994
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/548666

Plantas tóxicas para bovinos em Mato Grosso do Sul.
Provedor de dados: 14
Autores: POTT, A.; AFONSO, E.
As principais plantas tóxicas em Mato Grosso do Sul são apresentadas, com uma síntese dos sinais clínicos da intoxicação em bovinos e a quantidade que mata, expressa em quilos de planta fresca por 100 quilos de peso vivo bovino.
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Mato Grosso do Sul.; Bovino; Pastagem; Planta Tóxica.; Cattle; Brazil; Pastures; Poisonous plants.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/325249

Atlas de producoes agropecuarias dos cerrados.
Provedor de dados: 14
Autores: FRANZ, P. R. F.; WANIEZ, P.
bitstream/item/101118/1/doc-30.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Brasil; Agricultural; Agropecuária; Atlas; Distribution; Produção agropecuária; Production; Região do cerrado.; Cerrado; Distribuição Geográfica; Produção Agrícola.; Produção; Agriculture; Geography.; Brazil; Cattle.
Ano: 1988
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/548519

Síntese: tecnologias geradas pelo sistema EMBRAPA Gado de Corte.
Provedor de dados: 14
Autores: EMBRAPA. Centro Nacional de Pesquisa de Gado de Corte (Campo Grande, MS).
bitstream/item/104688/1/Sintese-tecnologias-geradas.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Brasil.; Bovino; Corte; Tecnologia.; Cattle; Technology.
Ano: 1984
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/324617

A mosca-dos-chifres (Haematobia irritans) em Rondônia.
Provedor de dados: 14
Autores: SILVA NETTO, F. G. da; TAVARES, A. C.; ALVES, P. M. P.; PEREIRA, R. G. de A.; LIMA, R. P.; PATROCLO, C. de A.
A mosca-dos-chifres (Haematobia irritans) é mais um ectoparasito que vem preocupando os órgãos de defesa sanitária animal, de pesquisa, de assistência técnica e criadores, pelos danos causados principalmente à pecuária bovina. O Estado de Rondônia conta com um rebanho bovino de aproximadamente um milhão e seiscentas mil cabeças. Conforme trabalhos realizados em outros países que acusam prejuízos vultosos, as perdas de produção causadas pela ação da mosca sobre este rebanho, poderão atingir altas proporções, caso não se introduza nenhuma tecnologia de controle. Este documento tem por objetivo, formular algumas orientações de controle com êxito em outras regiões que certamente servirão para diminuir a infestação de moscas e também se constituirá como base...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Horn fly; Besouro africano; Brown dung beetle; Besouro Rola Bosta; Rondônia; Western Amazon.; Amazônia Ocidental; Gado; Mosca dos Chifres; Parasito de Animal; Haematobia Irritans; Inseto Para Controle Biológico.; Cattle; Ectoparasites; Biological control agents; Onthophagus gazella.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/697884

Silvopastoral systems in the cold zone of Brazil.
Provedor de dados: 14
Autores: VARELLA, A. C.; BARRO, R. S.; SILVA, J. L. S. da; PORFIRIO-DA-SILVA, V.; SAIBRO, J. C. de.
The cold zone of Brazil occupies approximately 6 % of the national territory and is located between latitudes 24° S and 33° S. In this area, extensive cattle and sheep farming systems and conventional cropping and forestry are predominant. With the end of government subsidies by the decade of 1980s, an increase in farming production costs, a decrease of native forest covering, an increase of degraded areas in agriculture and livestock farming systems and a mismatch between timber national supply and demand after 1990s, an opportunity arises for integrate forestry with livestock and agriculture activities in Brazil, particularly in the southern. This chapter initially reports key events over the last three decades that have supported the increasing interest...
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Sistema silvipastoril; Sistema agroflorestal; Região Sul; Brasil; Tree; Southern Brazil; Planta Forrageira; Sombreamento; Agroforestry; Cattle; Sheep.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1090865

Suplementacao mineral para gado de corte no Estado do Tocantins.
Provedor de dados: 14
Autores: LOPES, H. O. da S.; PEREIRA, E. A.; SOARES, W. V.; SANZONOWICZ, C.; PEREIRA, G.; ALMEIDA, A. D.
bitstream/item/99426/1/comtec-71.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Tocantins; Brasil; Supplements; Bone; Bovino de corte; Heavy; Mineral deficiencies; Mineral nutrients; Pasture.; Cerrado; Deficiência Mineral; Corte; Gado de Corte; Gado; Mineral; Metal; Nutriente Mineral; Nutrição Animal; Suplemento Mineral.; Animal nutrition; Beef cattle; Fluorine; Beef; Brazil; Cattle; Liver; Minerals.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/553044

Fontes alternativas de fósforo para redução de custos do sal mineral para bovinos.
Provedor de dados: 14
Autores: LOPES, H. O. da S.
bitstream/CPAC-2010/23699/1/doc-45.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: PABOV200; Alimentacao animal; Brasil; Supplements; Bovino: Suplemento alimentar.; Bovino; Cerrado; Fósforo; Nutrição Animal; Suplemento Alimentar.; Animal nutrition; Animal feeding; Cattle; Phosphorus.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567048

Estimativa da população de bovinos no Pantanal por meio de modelos temáticos e índices tradicionais.
Provedor de dados: 14
Autores: OLIVEIRA, L. O. F. de; ABREU, U. G. P. de; DIAS, F. R. T.; FERNANDES, F. A.; NOGUEIRA, E.; SILVA, J. C. B.
bitstream/item/149610/1/COT99.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: População bovina; Estatística de produção; Bovino; Rebanho; Cattle; Livestock production.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1055918

Ação hormonal da leptina em ruminantes.
Provedor de dados: 14
Autores: SALMAN, A. K. D.; COSTA, R. B.
A leptina, chamada de hormônio da obesidade, é produzida e secretada pelos adipócitos. É um hormônio capaz de alterar o consumo de alimento e o gasto de energia, por parte do animal, pois informa o cérebro sobre a quantidade de energia armazenada em forma de gordura. Propõe-se, nesta Documentos, explicar a ação da leptina em ruminantes. O trabalho apresenta os seguintes tópicos: Polimorfismos no gene da leptina; Expressão gênica da leptina; Os receptores da leptina; Controle do apetite pela leptina; Modulação fisiológica da leptina; Ação da leptina sobre a reprodução.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Leptina; Animal hormone.; Bovino; Hormônio Animal.; Metabolismo Animal; Metabolism; Cattle; Leptin.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/710735

Receptores gps para estudo do comportamento espacial de bovinos em pastagens nativas do Pantanal.
Provedor de dados: 14
Autores: PIOVEZAN, U.; DOMPIERI, M. H. G.; CENTURION, S. R.; PELLEGRIN, L. A.
A avaliação do comportamento espacial de animais permite o aprimoramento do manejo dos rebanhos, subsidiando ações para melhoria da produtividade e do bem-estar animal. Beneficiam-se de tais avaliações a indústria pecuária e seus consumidores, além daqueles interessados na preservação de recursos naturais inseridos ou contidos nas áreas de produção pecuária, como as Áreas de Proteção Permanente (APP), nascentes de rios e as Reservas Legais (RL). O presente estudo foi realizado na região Centro-Sul do Pantanal, conhecida como Nhecolândia com o objetivo de avaliar preliminarmente a viabilidade de utilização da telemetria para estudo do comportamento espacial de bovinos em manejo extensivo, mantidos em pastagens nativas. Dezenove colares com receptores GPS da...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: GPS; Comportamento animal; Bovino; Animal behavior; Cattle; Global positioning systems.
Ano: 2017
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1085492

Carrapato dos bovinos: métodos de controle e mecanismos de resistência a acaricidas.
Provedor de dados: 14
Autores: PEREIRA, C. D.; SOUZA, G. R. L. DE; BAFFI, M. A.
bitstream/item/77768/1/doc-278.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Controle; Tick; Acaricide resistence.; Acaricida; Bovino; Carrapato; Sanidade Animal.; Rhipicephalus microplus; Control methods.; Cattle.
Ano: 2010
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/881513

Práticas sanitárias para bovinos na região amazônica.
Provedor de dados: 14
Autores: LAU, H. D.
bitstream/item/34706/1/RecBas-31.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Controle de doenca; Pará; Brasil; Management.; Bovino; Manejo.; Amazonia; Cattle; Disease control.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/375273

Estimativa do custo de producao da carne bovina para a regiao Centro-oeste: setembro de 1986.
Provedor de dados: 14
Autores: COSTA, F. P.; PACHECO, J. A. de C.; CORREA, E. S.; ARRUDA, Z. J. de.
bitstream/item/138579/1/COT-30.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Brasil; Aspecto economico; Sistema; Regiao centro-oeste; Indicador; Production; Cost; Price; Economic conditions; System; West central region.; Bovino; Carne; Custo; Preço; Produção.; Cattle; Brazil; Meat.
Ano: 1986
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/317598

Seleção para correção de prepúcio e ausência de prolapso em touros de corte.
Provedor de dados: 14
Autores: TORRES JUNIOR, R. A. de A.; BIGNARDI, A. B.; SILVA, L. O. C. da.
O grande uso de touros para monta natural em pastagens tomadas por invasoras predispõe animais com prepúcio longo e com tendência a expor a membrana deste a lesões que podem causar até a perda permanente do reprodutor. Essas características são mais comumns nas raças zebuínas e nas britânicas mochas e nos compostos provenientes de combinações dessa raça. Dentre as formas de avaliação dessa característica destaca-se o uso de escores visuais de umbigo/prepúcio a partir de uma referência gráfica fixa que permite uma avaliação de toda a população e disponibiliza uma maior quantidade de informação. A herdabilidade dessa característica é em torno de 0,2, o que torna necessária uma avaliação dos animais pela progênie para conhecer melhor o seu valor como produtor...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Selection; Genetic parameters.; Bovino; Melhoramento Genético Animal; Parâmetro Genético; Seleção; Reprodução; Touro.; Animal breeding; Cattle; Bulls; Reproduction.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/325752

Resultados do controle de desenvolvimento ponderal - raça Indubrasil - 1975/1984.
Provedor de dados: 14
Autores: ROSA, A. do N.; NOBRE, P. R. C.; EVANGELISTA, S. R. M.; MARIANTE, A. da S.; SILVA, L. O. C. da.
Convênio EMBRAPA/ABCZ. Raça Indubrasil. Controle de desenvolvimento ponderal. Considerações sobre os resultados do controle e desenvolvimento ponderal da raça Indubrasil. Controle ponderal da Raça Indubrasil a nível nacional. Controle ponderal da Raça Indubrasil a nível de estado.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Indubrasil; Desenvolvimento; Melhoramento genético.; Bovino; Peso.; Performance; Breeding; Cattle; Weight.
Ano: 1985
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/320372

Consideracoes sobre a mosca-dos-chifres, seu controle e criacao massal do besouro coprofago Onthophagus gazella.
Provedor de dados: 14
Autores: SAUERESSIG, T. M.; ALVES, R. M. R.
A mosca-dos-chifres, Haematobia irritans e considerada a maior praga dos bovinos nos Estado Unidos (Drummond et al., 1981) e uma das maiores pragas na Australia, sendo tambem muito importante na Europa. No Brasil, a mosca ocorre praticamente em todo o Pais, e os pecuaristas, especialmente da regiao do Cerrado, tem apontado o inseto como responsavel por grandes prejuizos. Sua introducao ocorreu por volta de 1976 na regiao norte, e a partir dai dispersou-se rapida e eficientemente. No Distrito Federal, a mosca foi observada pela primeira vez em 1990 (Saueressig, 1990). Por ser uma praga relativamente nova, existe pouca informacao sobre sua epidemiologia, controle e possiveis danos (nivel e grau de prejuizo) nessa regiao. A partir da sua dispersao no Brasil,...
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Bovino; Besouro Coprófago; Cerrado; Criação Massal; Controle Biológico; Haematobia Irritans; Mosca dos Chifres.; Onthophagus gazella; Biological control; Cattle; Mass rearing.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/555052

Proceedings...
Provedor de dados: 14
Autores: WORKSHOP ON OMICS STRATEGIES APPLIED TO LIVESTOCK SCIENCE, 1., 2017, Piracicaba, SP.
The integration of national and international researchers is extremely important for the dissemination and perpetuation of knowledge in several areas of scientific research. The "Ist workshop on omics strategies applied to livestock science" aimed to promote discussion and experience exchange on innovative subjects and methods in livestock, addressing issues such as omics technologies for system biology, animal breeding, and genomic data integration for complex traits like meat quality and feed efficiency. This event was organized by the partnership between the College of Agriculture "Luiz de Queiroz" (ESALQ/USP) and the Brazilian Agricultural Research Corporation (EMBRAPA) Southeast Livestock Center, coordinated by Prof. Dr. Luiz Lehmann Coutinho, Dr....
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Bovino; Genética; Tecnologia; Gado; Genoma; Pesquisa; Tecnologia da Informação.; Cattle; Research; Genome; Information technology.
Ano: 2017
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1075434

Tecnologias e informações para a pecuária de corte no Pantanal.
Provedor de dados: 14
Pastagens nativas; Pastagens cultivadas; Nutrição mineral de bovinos; Manejo reprodutivo: desmama e estacao de monta; Manejo e melhoramento genético; Doenças da reprodução; Profilaxia e controle dos principais ectoparasitos de bovinos: mosca-dos-chifres e mosca-varejeira; Verminoses de bovinos; Anemia infecciosa equina; Manejo da fauna e da flora silvestre como alternativa de produção agropecuária e mecanismo de conservação do Pantanal.
Tipo: Livros
Palavras-chave: Brasil; Pecuária; Produção Animal; Brazil; Pantanal; Animal production; Cattle.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/791943

Morbidade e mortalidade de bezerros e bovinos adultos em assentamentos rurais em Corumbá, MS .
Provedor de dados: 14
Autores: TOMICH, R. G. P.; PELLEGRIN, A. O.; JULIANO, R. S.; CAMPOLIN, A. I.; ASSIS, T. C. de; COSTA, M. dos S.; CAVALCANTE, J.; STANCIOLI, E. F. B.
Esse trabalho teve o objetivo de levantar os principais problemas de mortalidade de bezerros e bovinos adultos no Assentamento Tamarineiro II por meio de epidemiologia participativa e diagnóstico virológico complementar.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Doença Animal; Bovino; Comunidade Rural; Animal diseases; Rural communities; Cattle.
Ano: 2018
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1103761

[Resumos dos trabalhos...].
Provedor de dados: 14
Autores: JORNADA CIENTÍFICA EMBRAPA GADO DE CORTE, 15., 2019, Campo Grande, MS.
bitstream/item/198895/1/15-Jornada-cientifica-Embrapa-Gado-Corte.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Gado de Corte; Melhoramento Genético Animal; Nutrição Animal; Pastagem; Produção Animal; Sanidade Animal; Cattle; Genetic improvement; Animal nutrition; Grazing; Animal production; Animal health.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1110154

Reflexões sobre o uso de selênio em misturas minerais.
Provedor de dados: 14
Autores: NICODEMO, M. L. F.
bitstream/item/104651/1/Reflexoes-sobre-o-uso.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Bovino; Nutrição Animal; Selênio.; Animal nutrition; Cattle; Selenium.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/322168

Evolucao agropecuaria da regiao nuclear dos cerrados 1970-1980.
Provedor de dados: 14
Autores: SANTOS, N. A. dos; AGUIAR, J. L. P. de.
O desenvolvimento economico do pais no decenio de 1970 a 1980, a melhoria da renda "per capita", o crescimento populacional e o aumento das exportacoes foram alguns dos fatores que determinaram a crescente producao de alimentos. Esse incremento na disponibilidade de produtos agricolas, decidiu-se a epoca, teria que ser feito via aumento da produtividade nas areas agricolas tradicionais e da abertura de novas areas de producao. A regiao dos cerrados, com 238,6 milhoes de hectares, apresenta-se com excelente potencial para a segunda opcao. Dispoe de razoavel infra-estrutura viaria e esta proxima dos grandes centros consumidores. Estes centros recebem, constantemente, significativo fluxo migratorio rural-rural, oriundo, sobretudo, do sul do Pais e dispoe de...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Desenvolvimento regional; Brasil; Regional development; Maize; Wheats.; Algodão; Bovino; Arroz; Cerrado; Feijão; Glycine Max; Manihot Esculenta; Mandioca; Milho; Oryza Sativa; Phaseolus Vulgaris; População Urbana; População Rural; Soja; Trigo; Zea Mays.; Gossypium; Brazil; Cassava; Cattle; Cotton; Soybeans; Urban population.; Rice; Rural population.
Ano: 1985
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/547618

Relatório técnico anual do Centro de Pesquisa Agropecuária dos Cerrados 1975-1976.
Provedor de dados: 14
Autores: EMBRAPA. Centro de Pesquisa Agropecuaria dos Cerrados (Planaltina, DF).
bitstream/item/126087/1/relatorio-04.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: CPAC; Agropecuaria; Bovino de corte; Relief; Production system; Diffusion of research; Management.; Agricultura; Clima; Cerrado; Doença de Planta; Difusão de Tecnologia; Irrigação; Manejo; Pesquisa; Nutrição Animal; Recurso Natural; Relevo; Recurso Hídrico; Sistema de Produção; Solo Ácido; Solo; Vegetação.; Acid soils; Agriculture; Animal feeding; Beef cattle; Climate; Cattle; Irrigation; Research; Natural resources; Soil; Vegetation.
Ano: 1976
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/548811

Diagnóstico da mastite bovina.
Provedor de dados: 14
Autores: OLIVEIRA, V. M. de.
Sintomas da mastite; Clinica; Subclinica; Celulas somaticas - definicao; Diagnostico da mastite clinica; Exame do ubere; Exame visual (antes da ordenha); Exame manual do ubere e tetas (apos a ordenha); Teste da caneca de fundo escuro ou caneca telada; Diagnostico diferencial da mastite; Lesoes das tetas; Diagnostico da mastite subclinica; Metodos de deteccao das celulas somaticas; CCS atraves de contadores eletronicos; Contagem direta em laminas (CDL); California Mastitis Test (CMT); Teste do Viscosimetro (WMT); Teste para medir a condutividade eletrica; Teste com o "Detector de Condutividade" manual; Sistema de condutividade acoplado a ordenhadeira mecanica; Como calcular o nivel de mastite em um rebanho; Mastite clinica; Mastite subclinica; Exames...
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Bovine; Bovinos; Control; Controle; Diagnosis; Disease; Enfermidade; Exames; Gado de leite; Mamimary gland diseases; Mastite; Mastite bovina; Symptions.; Animal; Bovino; Diagnostico; Doença; Doença Animal; Gado Leiteiro; Infecção; Mamite; Profilaxia; Sintoma.; Animal diseases; Cattle; Dairy cattle; Mastitis.; Infection.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/957987

Avaliacao do beneficio-custo do controle estrategico de parasitos em bovinos domesticos. 1.Dados preliminares de ganho de peso.
Provedor de dados: 14
Autores: BIANCHIN, I.; FEIJO, G. L. D.; VAZ, E. C.; GOMES, A.; KICHEL, A. N.
bitstream/item/137706/1/PESQ-EM-ANDAMENTO-52.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Mestico; Controle estrategico; Brasil Central; Control; Costs; Central Brazil.; Bovino; Custo; Parasito.; Crossbreds; Cattle; Parasites.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/322256

Challenges to cattle ranching in the Brazilian Amazon.
Provedor de dados: 14
Autores: DIAS FILHO, M. B.; LOPES, M. J. dos S.
The purpose of this paper is to summarize the challenges and evolution of cattle ranching in the Brazilian Amazon, including their historical beginning. Emphasis is placed on the role of Embrapa in generating improved pasture technology and fostering its adoption by ranchers.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Pecuária; Gado; Pastagem; Desenvolvimento Sustentável; Historia; Livestock; Environmental sustainability; Pasture management; Cattle.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122768

Variacao sazonal do carrapato em bovinos no Distrito Federal.
Provedor de dados: 14
Autores: SAUERESSIG, T. M.
bitstream/item/107103/1/pesq-56.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Distrito Federal; Brasil; Seazonal variation.; Boophilus Microplus; Bovino; Carrapato; Cerrado; Variação Sazonal.; Brazil; Cattle; Ticks.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/549395

Relatório técnico anual do Centro de Pesquisa Agropecuária dos Cerrados 1981-1982.
Provedor de dados: 14
Autores: EMBRAPA. Centro de Pesquisa Agropecuaria dos Cerrados (Planaltina, DF).
bitstream/item/131341/1/relatorio-06.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: CPAC; Agropecuaria; Saude animal; Flood plains; Feed crops; Production system; Diffusion of research; Management.; Agricultura; Cerrado; Deficiência Hídrica; Difusão de Tecnologia; Irrigação; Manejo; Pesquisa; Pastagem; Planta Forrageira; Recurso Hídrico; Queimada; Recurso Natural; Sistema de Produção; Solo; Veranico.; Várzea; Agriculture; Animal health; Cattle; Burning; Irrigation; Research; Pastures; Natural resources; Technology.; Soil water deficit; Soil.
Ano: 1985
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/548810

Sistema intensivo de engorda de bovinos em pastagem irrigada no Nordeste brasileiro.
Provedor de dados: 14
Autores: SOARES, J. G. G.; GUIMARÃES FILHO, C.
Trata sobre pastagem irrigada para engorda de bovinos, escolha da area, preparo do solo e correcao, adubacao com fosforo, estabelecimento da pastagem, cercas externas e internas, inicio do pastejo, inicio do ramoneio, adubacao de manutencao e resultados esperados.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Estabelecimento; Nordeste; Fattening; Pasture; Establishment; Northeast.; Produção animal; Adubação; Bovino; Engorda; Irrigação; Pastagem.; Animal production; Fertilizer application; Cattle; Irrigation.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/133394

Aveia e azevém: opções que garantem alimentação.
Provedor de dados: 14
Autores: BOTREL, M. de A.; ALVIM, M. J.
Tipo: Artigo de periódico
Palavras-chave: Forrageiras; Oat; Ney gras; Dry period; Aveia; Azevém; Seca; Cattle.
Ano: 1993
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/591616

Contribuição técnica para um plano de revitalização e desenvolvimento da pecuária bovina no Oeste da Bahia.
Provedor de dados: 14
Autores: CEZAR, I.; MAIA, A.
No Oeste da Bahia, a revitalização e o desenvolvimento da pecuária de corte têm sido considerados como prioridades. Nesse sentido, a Secretaria de Agricultura, Irrigação e Reforma Agrária (SEAGRI) resolveu, sob a coordenação da Empresa Baiana de Desenvolvimento Agrícola S/A (EBDA), tomar a iniciativa de elaborar um plano de ações que contemplem esta demanda. Esse relatório tem como objetivo oferecer subsídios para elaboração do referido plano e fundamenta-se numa abordagem participativa com a comunidade local. O declínio da pecuária é caracterizado por uma redução do rebanho, manifestada pela substituição de venda de boi gordo por bezerro desmamado. Grande parte das pastagens encontra-se degradada ou em processo de degradação. A falta de capacitação dos...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Bahia; Brasil; Husbandry.; Agricultura; Bovino; Pecuária; Planejamento.; Agriculture; Brazil; Cattle; Planing.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/325128

Desmama precoce-performance reprodutiva das vacas e desempenho das crias.
Provedor de dados: 14
Autores: ROSA, G. O. da; DODE, M. A. N.; PORTO, J. C. A.; ENCARNACAO, R. de O.; SILVA, J. M. da; CHIARINI, E.
bitstream/item/137577/1/PESQ-EM-ANDAMENTO-34.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Desempenho reprodutivo; Cow; Calf.; Bezerro; Bovino; Desmama Precoce; Vaca.; Cattle; Reproductive performance; Weaning.
Ano: 1986
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/320405

Suplementação de baixo custo para bovinos: mineral e alimentar.
Provedor de dados: 14
Autores: LOPES, H. O. da S.
Funcoes e sintomas de deficiencia dos minerais essenciais para bovinos; Suplementacao mineral de bovinos no pasto; Correcao das deficiencias minerais de bovinos na regiao dos cerrados; Alternativas de reducao de custos da suplementacao mineral; Formula de mistura meneral para gado de corte; Alternativas de suplementacao do gado na epoca da seca; A mandioca na alimentacao animal; Mistura Multipla; Silagem; Fenacao.
Tipo: Livro técnico (INFOTECA-E)
Palavras-chave: Epoca seca; Supplementary feeding; Haymaking; Mineral deficiencies; Supplements.; Bovino; Cerrado; Deficiência Mineral; Fenação; Mandioca; Nutrição Animal; Silagem; Suplemento Mineral; Uréia.; Suplemento Alimentar; Animal nutrition; Cassava; Dry season; Cattle; Silage; Urea.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/544165

A identificação eletrônica e rastreamento do bovinos.
Provedor de dados: 14
Autores: PIRES, P. P.
O rastreamento de animais, na cadeia da carne exigido pelo comércio internacional, requer a intensificação do manejo nas propriedades rurais e controle rígido dos animais com a identificação individual correta e rápida. Associando esses fatos foi desenvolvido pela Embrapa Gado de Corte um sistema eletrônico para o gerenciamento de bovinos que utiliza a identificação eletrônica dos animais, o que favorece o uso dos softwares que possibilitam o melhor rendimento dos rebanhos e garante o mercado externo que deseja comprar carne com rastreamento.
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Identificação eletrônica.; Bovino; Rastreamento.; Electronic identification; Cattle; Traceability.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/325255

Suplementacao mineral de bovinos na estacao seca.
Provedor de dados: 14
Autores: NICODEMO, M. L. F.
bitstream/item/105023/1/COT66.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Suplementacao mineral; Estacao seca; Supplements; Mineral nutrients; Brazilian savannas.; Bovino; Cerrado; Nutrição Animal.; Animal nutrition; Cattle; Dry season.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/325281

Controle sanitário e mineralização para bovinos na região dos cerrados.
Provedor de dados: 14
Autores: SAUERESSIG, T. M.; SAUERESSIG, M. G.; LOPES, H. O. da S.
bitstream/item/99085/1/cirtec-35.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Supplements; Mineral nutrition; MIneralization Cerrado.; Bovino; Cerrado; Mineralização; Nutrição; Nutrição Animal; Saúde; Suplemento Mineral; Veterinária.; Animal nutrition; Animal health; Cattle; Mineralization.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/553714

Uso de enxofre no controle de carrapato (Boophilus microplus) em bovinos.
Provedor de dados: 14
Autores: COSTA, N. A. da.
bitstream/item/57828/1/CPATU-PA95.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Pará; Brasil; Pests of animals; Sulphur.; Boophilus Microplus; Bovino; Carrapato; Enxofre; Parasito; Praga de Animal.; Amazonia; Cattle; Parasites.
Ano: 1983
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/382928

Mitos e realidades sobre o consumo de carne bovina.
Provedor de dados: 14
Autores: VALLE, E. R. do.
A carne bovina magra e considerada um alimento de alta densidade nutricional, por apresentar em sua composicao uma grande quantidade de nutrientes, com alta disponibilidade e baixo valor calorico. Ela e rica em proteinas de alta qualidade, acidos graxos essenciais, vitaminas do complexo B (tiamina, riboflavina, niacina, biotina, acido pantotenico, folacina, vitaminas B6 e B12) e minerais como ferro, zinco e fosfora. Todos os nutrientes contidos na carne bovina sao de primordial importancia na alimentacao, destancando-se o ferro. Na carne bovina, o ferro e encontrado na forma heme, de mais facil absorcao pelo organismo humano do que o ferro nao heme, disponivel nos vegetais, cereais, frutas e ovos. No entanto, por ignorancia ou sensacionalismo, informacoes...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Nutrientes; Animal fats.; Bovino; Carne; Colesterol; Gordura; Nutrição Humana.; Cattle; Cholesterol; Human nutrition; Nutrients.; Meat.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/325130

Selection of Panicum maximum hybrids in Brazil.
Provedor de dados: 14
Autores: JANK, L.; SANTOS, M. F.; NONATO, T. B.; SANTANA, T. S.; BARRIOS, S. C. L.; RESENDE, R. M. S.; VALLE, C. B. do.
In search of new cultivars with differentials that better meet the needs of the cattle ranchers, crosses between five sexual plants and the apomictic accessions PM20, PM21 and Myiage were carried out at Embrapa Beef Cattle, Campo Grande, MS, Brazil. Accessions PM20 and PM21 were used to generate shorter hybrids for use under grazing and for crop-livestock integration; Myiage was used because of its ability to retain seeds.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Progenitors; Nutritive value; Hybrids; Cultivars; Cattle; Grazing.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120358

Emprego de modelos matemáticos para pesquisa e gerenciamento de sistemas integrados de lavoura e pecuária.
Provedor de dados: 14
Autores: VELOSO, R. F.; BARIONI, L. G.; MARTHA JUNIOR, G. B.
ABSTRACT: Annual crops have been frequently used for the establishment and renewing of pastures in the Brazilian Cerrado. However it was only recently that cropping and cattle production have been treated as integrated systems' components. In this context, the publication shows how system concepts and its implementation through mathematical modeling can be used in the management of integrated crop-livestock production systems. Further, it is concluded that the increasing access to computers is creating great opportunities to store and spread out information to better support decision-making. It is concluded, however, that the development of computer models for integrated systems is still incipient and that closer collaboration among researchers of...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Modelagem matemática; Cultura anual; Sistema de suporte; Plant production; Annual crops; Decision support.; Bovino; Lavoura; Pastagem; Pecuária.; Animal husbandry; Cattle; Pastures.; Mathematical models.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569198

Uso e manejo de bovinos fistulados no esôfago em ensaios de pastejo.
Provedor de dados: 14
Autores: CARVALHO FILHO, O. M. de.
Apresentação; Introdução; Usos; Manejo; Cuidados pós-operatórios; Cuidados de rotina; Tipos de cânulas; Coleta de amostras; Alterações nas amostras; Comportamento de animais fistulados; Referências.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Uso; Experimento; Management; Pasture.; Bovino; Esôfago; Fistula; Manejo; Nutrição Animal; Pastagem; Pastejo.; Animal nutrition; Cattle; Esophagus.
Ano: 1981
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/510968

Cadeia produtiva do couro bovino: oportunidades e desafios.
Provedor de dados: 14
Autores: PEREIRA, M. de A.; JACINTO, M. A. C.; GOMES, A.; EVARISTO, L. G. S.
Cadeia produtiva do couro bovino. Distribuição regional da produção de couro. Desafios da cadeia produtiva do couro bovino. Recomendações à cadeia produtiva do couro bovino.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Brasil; Agroindustrial complexes; Quality.; Cadeia Produtiva; Bovino; Couro; Pele; Qualidade.; Cattle; Brazil; Hides and skins; Leather.
Ano: 2005
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/326317

Recuperação e criopreservação de espermatozóides do epidídimo de bovinos mortos para uso na inseminação artificial ou fecundação in vitro.
Provedor de dados: 14
Autores: MARTINS, C. F.; DODE, M. N.; SERENO, J. R. B.; COSTA, P. de M.; SAUERESSIG, M. G.; RUMPF, R.
bitstream/item/95713/1/comtec-151.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Bovinae; Sperm; Gene bank.; Bovino; Banco de Germoplasma; Criopreservação; Espermatozóide; Reprodução Animal.; Animal breeding; Germplasm.; Cryopreservation; Cattle.
Ano: 2008
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/570682

Tipificação de municípios produtores de bovinos no Brasil.
Provedor de dados: 14
Autores: FASIABEN, M. do C. R.; SANTUCCI, J. M.; MAIA, A. G.; ALMEIDA, M. M. T. B.; OLIVEIRA, O. C. de; BARIONI, L. G.
Resumo: Num país com as dimensões do Brasil é muito acentuada a variabilidade dos sistemas de produção agropecuária praticados pelos produtores. Conhecer esta diferenciação é fundamental para propor linhas de pesquisa, desenvolvimento, transferência de tecnologia e políticas públicas apropriadas. Dados do Censo Agropecuário brasileiro de 2006, realizado pelo Instituto Brasileiro de Geografia e Estatística (IBGE), mostram que mais da metade dos estabelecimentos agropecuários do país possuíam pelo menos um bovino, correspondendo a 2,7 milhões de estabelecimentos e 176,1 milhões de cabeças. Este trabalho trata da classificação e caracterização dos municípios produtores de bovinos no Brasil, empregando técnicas de análise multivariada (análise fatorial e de...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Análise fatorial; Análise de cluster; Produção de bovinos; Tipologia de municípios.; Estatística.; Statistics; Cluster analysis; Cattle.
Ano: 2013
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/981008

Coletânea de seminários técnicos 1986/88.
Provedor de dados: 14
Autores: VALLE, E. R. do; SOARES, M. R. J.; SCHENK, M. A. M.
Estatística e informática, utilização do pacote SOC. Forrageiras e pastagens. Análises de laboratório visando a estimativa de qualidade das forrageiras. Avaliação da coleção de Panicum maximum no México e em Cuba. A biotecnologia de plantas no CNPGC: sofisticação dispensável ou inevitável. To Breed or not to Breed? um espaço para o melhoramento de plantas no CNPGC. Caracterização e avaliação do dano causado pelo adulto da cigarrinha-das-pastagens Zulia entreriana (Berg,1879) em Brachiaria decumbens Stapf cv. Basilisk. Citologia e modo de reprodução de oito gramíneas do gênero Brachiaria. Coleção de Brachiaria, processos na avaliação de germoplasma. O perfilhamento em gramíneas. Produção animal. Análise especial do gado de corte no Brasil. Avaliação da...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Brazilian savannas.; Bovino; Cerrado; Pesquisa.; Cattle; Research.
Ano: 1989
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/321600

Produção do bezerrão.
Provedor de dados: 14
Autores: CAMPOS, O. F. de; LIZIEIRE, R. S.
Trata da produção do Bezerrão. O sistema de produção do Bezerrão se caracteriza pelo desaleitamento precode dos bezerros e fornecimento, à vontade, de rações que propiciem altas taxas de ganho de peso. Os animais são abatidos aos seis meses d idade com 200 kg de peso vivo, apresentando carcaças vermelhas de excelente qualidade. Após breve introdução sobre o tema, são dadas informações sobre a escolha dos animais a serem utilizados e os cuidados durante aprimeira semana de vida dos bezerros. A seguir são descritas as principais questões relacionadas com a alimentação, manejo e instalações, terminado com cosiderações a respeito do custo de produção do Bezerrão.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Abate de animal; Bezerra; Bezerrao; Bezerros; Big calf; Brasil; Bull-calf; Costs; Criação de Bezerrão; Desmame; Juiz de Fora; Minas Gerais; Production; Staughtering; Weith gain.; Bovinocultura; Bezerro; Bovino; Colostro; Custo; Ganho de Peso; Gado de Corte; Produção Animal.; Produção; Animal production; Cattle; Beef cattle; Calves; Foals.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/957993

Leptospirose bovina: cuidados preventivos evitam prejuízo e garantem saúde do rebanho.
Provedor de dados: 14
Autores: CAVALCANTE, F. A.
A leptospirose bovina é uma doença infecciosa, causada por bactérias do gênero leptospira, podendo ser encontrada em todo o território nacional. Na atividade pecuária, além da adoção de novas tecnologias, é importante implementar um calendário sanitário e o controle de doenças na esfera reprodutiva para garantir sanidade aos rebanhos bovinos. Existe tratamento para a leptospirose bovina, mas o criador deve adotar os cuidados necessários e buscar ajuda com profissional capacitado, que, a partir das variantes sorológicas identificadas nos rebanhos, indicará as medidas de controle e o tratamento adequado.
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Métoto de controle; Ganado bovino; Enfermedades animales; Métodos de control; Bovinocultura; Doença Animal; Leptospirose; Transferência de Tecnologia; Cattle; Animal diseases; Control methods; Leptospirosis; Technology transfer.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1132497

Ecologia e manejo de pastagens nativas na área de sistemas de produção de carne.
Provedor de dados: 14
Autores: MESA REDONDA DO CENTRO NACIONAL DE PESQUISA DE GADO DE CORTE, 1978, Campo Grande, MS.
Estratégias alternativas para manejo de pastagens nativas. Algumas alternativas para o desenvolvimento das pastagens no cerrado. Pastejo contínuo e rotativo. Uso de fogo. O lugar das espécies forrageiras melhoradas. Introdução as técnicas de avaliação de pastagens e fatores que determinam sua escolha. Amostragem. Conservação de alimentos suplementares e cultura forrageiras para propósitos específicos. Modelação de um sistema de produção de carne. Pontos de discussão geral.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Modelo; Brasil; Natural pasture; Evaluation; Production; Management; System; Model.; Amostragem; Bovino; Carne; Ecologia; Manejo; Pastagem Nativa; Produção; Sistema de Produção.; Ecology; Cattle; Burning; Meat; Sampling.
Ano: 1981
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/319534

"Mosca-dos-chifres", Haematobia irritans: diagnóstico e controle.
Provedor de dados: 14
Autores: SAUERESSIG, T. M.
bitstream/item/101478/1/doc-43.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Controle; Horn fly; Diagnosis.; Bovino; Diagnostico; Doença Animal; Haematobia Irritans; Mosca dos Chifres.; Animal diseases; Cattle; Disease control.
Ano: 1992
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/549458

Utilização da amiréia na alimentação de ruminantes.
Provedor de dados: 14
Autores: SALMAN, A. K. D.
Realizou-se um trabalho de revisão de literatura com o intuito de levantar os motivos pelos quais pode ser vantajoso a produção e utilização da amiréia na alimentação de ruminantes.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Revisão de literatura; Literature review.; Nutrição Animal; Alimentação Suplementar; Amido; Uréia.; Bovino; Animal nutrition; Starch; Urea.; Dietary supplements; Cattle.
Ano: 2008
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/709704

Eficiência do pó de alho (Allium sativum L.) no controle dos parasitos de bovinos.
Provedor de dados: 14
Autores: BIANCHIN, I.; GOMES, A.; FEIJO, G. L. D.; VAZ, E. C.
Nos últimos anos, a Embrapa Gado de Corte tem recebido inúmeras indagações por carta, telefone, em palestras etc. sobre a utilização do alho, em especial, no controle da mosca-dos- chifres (Haematobia irritans irritans) em bovinos. O principal objetivo do experimento foi verificar a eficácia do alho em pó, adicionado ao sal mineral, no controle de mosca-dos-chifres, carrapatos (Boophilus microplus) e helmintos de bovinos. Foram utilizados 42 novilhos cruzados, distribuídos em dois grupos de 21 animais, levando-se em consideração a raça, o peso, ovos por grama de fezes (OPH), numero de moscas, idade e o numero de carrapatos. Durante todo o período experimental, os grupos ficaram em piquetes separados com pastagens de Brachiaria decumbens. Um grupo de...
Tipo: Folhetos
Palavras-chave: Sanidade; Mosca-dos-chifres; Controle; Brasil; Health; Horn fly; Helmints; Control; Brazilian savannas; Allium Sativum; Boophilus Microplus; Bovino; Carrapato; Cerrado; Haematobia Irritans; Helminto; Parasito; Brazil; Cattle; Parasites; Ticks.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/322255

Verminose bovina.
Provedor de dados: 14
Autores: GIRAO, E. S.; LEAL, J. A.; GIRAO, R. N.; MEDEIROS, L. P.
Ciclo de vida dos nematódeos; Estudos desenvlvidos no Piauí; Levantamento parasitológico; Estudos epidemiológicos; Trabahos desenvolvidos com bezerros de origem leiteira; Helmintoses gastrintestinais em bezerros submetidos ao controle da verminose; Idade de infecção; Comparação de técnicas de diagnóstico das helmintoses; Ocorrência de Paramphistomum; Espécies envolvidas: Diagnóstico da verminose; Coleta de fezes; Controle da verminose; Eesquema de vermifugação; Anti-helmínticos recomendados.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Parasite.; Bovino; Helminto; Verminose.; Cattle; Helminths.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/57838

Legumineira: cultura forrageira para produção de proteína.
Provedor de dados: 14
Autores: SEIFFERT, N. F.; THIAGO, L. R. L. de S.
Esta publicação propõe a popularização do emprego de bancos de proteína (legumineiras) no sistema de produção bovina, na região do Brasil Central. Cultivos de guandu (Cajanus cajan) e de leucena (Leucaena spp.), incluídos como uma fração dos pastos demonstram ser uma ferramenta de grande utilidade para corrigir a deficiência de proteína que ocorre nas pastagens de gramíneas durante a estação seca. A publicação oferece orientação quanto ao planejamento, cultivo e manejo de legumineiras de guandu e leucena, apresenta dados de produção de forragem, proteína e resposta animal, bem como aborda o emprego desta leguminosas arbustivas em consorciações.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Banco de proteína; Leucena; Consorciação; Brasil central; Farming system; Protein bank; Feeding; Mixed pasture; Central Brazil; Alimentação; Bovino; Cajanus Cajan; Cerrado; Guandu; Leucaena; Sistema de Produção; Cattle.
Ano: 1983
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/327163

Avaliacao de alguns fatores do meio que influenciam a adaptacao, o comportamento fisiologico e o desempenho de bovinos da raca Sindi, nas condicoes ambientais do semi-arido brasileiro.
Provedor de dados: 14
Autores: TURCO, S. H. N.
Os trabalhos com capim buffel efetuados pela Embrapa Semi-Arido e outras instituicoes, comprovam a possibilidade de incrementos de peso vivo em bovinos da ordem de 100 a 150 kg por cabeca/ano, sendo atualmente considerada um dos mais importantes recursos forrageiros para a regiao semi-arida. Todavia, mesmo com esses ganhos, no periodo seco, pode haver perdas, devido a queda dos teores de proteina e energia do capim. Entretanto, sabendo-se que a qualidade da dieta selecionadas pelos ruminantes em pastejo, pode flutuar com o "status" fenologico das plantas forrageiras, a suplementacao energetica e/ou proteica de baixo custo, via mistura multiplas, pode se tornar uma pratica e uma excelente alternativa na busca do aumento da eficiencia produtiva dos animais,...
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Raca Sindi; Comportamento fisiologico; Desempenho; Adaptacao; Regiao semi-arida; Behaviour; Adaptation; Semiarid region; Bovino; Ecologia Animal; Performance; Animal ecology; Cattle.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/133623

Estudo da fase não Parasitária do Carrapato em Bovinos em Pastagens Cultivadas e Nativa do Distrito Federal.
Provedor de dados: 14
Autores: SAUERESSIG, T. M.
bitstream/item/75925/1/bolpd-37.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Distrito Federal; Brasil; Cattle tick; Natural pastures.; Bovino; Boophilus Microplus; Brachiaria Decumbens; Andropogon Gayanus; Carrapato; Cerrado; Pastagem Nativa.; Pastagem Cultivada; Cattle; Brazil; Sown pastures.
Ano: 1994
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/550171

Uso e manejo de bovinos fistulados no esôfago em ensaios de pastejo.
Provedor de dados: 14
Autores: CARVALHO FILHO, O. M. de.
Consiste em dar informacao de interesse pratico sobre o uso e manejo de bovinos fistulados no esofago, face ao crescente emprego dessa metodologia. Sao apresentados os seguintes topicos: usos; manejo; tipos de canulas; coleta de amostras; amostras e o comportamento de animal fistulados.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Uso; Experimento; Management; Pasture; Bovine.; Bovino; Esôfago; Fistula; Manejo; Pastejo.; Nutrição Animal; Pastagem; Animal nutrition; Esophagus.; Cattle.
Ano: 1981
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/131676

Ocorrência de brucelose bovina no Município de Porto Velho - Rondônia.
Provedor de dados: 14
Autores: FAGUNDES FILHO, J. J.; SILVA NETO, F. G. da; TAVARES, A. C.; MAGALHÃES, J. A.; FILHO, A. B. de L.
Este trabalho teve por objetivo determinar o índice de brucelose que afeta a bovinocultura no município de Porto Velho.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Brasil; Rondônia; Porto Velho; Disease; Bovino; Brucella; Brucelose; Cattle.
Ano: 1988
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/682308

Reações fisiológicas em diferentes grupos genéticos de bovinos de corte sob pastejo.
Provedor de dados: 14
Autores: ENCARNAÇÃO, R. de O.; SILVA, L. O. C. da; CORREA, E. S.; NOBRE, P. R. C.
bitstream/item/137544/1/PESQ-EM-ANDAMENTO-22.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Nelore; Ibage; Charoles; Fleckvieh; Adaptação; Charolois; Adaptation.; Bovino; Cruzamento.; Chianina; Nellore; Cattle; Grazing; Physiology.
Ano: 1983
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/318094

Controle estrategico da verminose bovina em propriedades rurais no Distrito Federal.
Provedor de dados: 14
Autores: SAUERESSIG, T. M.
bitstream/CPAC-2010/20760/1/rectec-26.pdf
Tipo: Recomendação Técnica (INFOTECA-E)
Palavras-chave: PABOV300; Distrito Federal; Brasil; Bovino: Sanidade animal.; Bovino; Cerrado; Doença Animal; Parasito de Animal.; Animal diseases; Brazil; Cattle; Parasites.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/562842

Terminação de bovinos na entressafra.
Provedor de dados: 14
Autores: THIAGO, L. R. L. de S.; COSTA, F. P.
No Brasil Central, bovinos engordados a pasto apresentam bom desenvolvimento na estação das chuvas (ganhos de peso de 500 a 800 g/dia) e fraco desempenho na época seca, quando ganham pouco peso ou até o perdem, devido à baixa produção das pastagens. Esta sequência de bons e maus desempenhos resultam em avanço na idade de abate dos animais.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Bovinos; Brasil; Campo Grande; CNPGC; Confinement; Consumption; Dry matter; EMBRAPA; Epoca; Fattening; Mato Grosso do Sul; Sistema; Bovine.; Bovino; Cerrado; Confinamento; Consumo; Engorda; Entressafra; Gado de Corte; Ganho de Peso; Matéria Seca; Terminação.; Cattle; Beef cattle; Restraint of animals; Weight gain.
Ano: 1983
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1036289

Tristeza parasitária dos bovinos: quando vacinar é preciso.
Provedor de dados: 14
Autores: KESSLER, R. H.; SOARES, C. O.; MADRUGA, C. R.; ARAÚJO, F. R. de.
A tristeza parasitária dos bovinos (TPB), causada por Babesia bovis, Babesia bigemina e Anaplasma marginale, é conhecida desde o final do século XIX. A premunição (infecção/tratamento), como método de profilaxia, tem sido usada desde o início do século XX. A partir dos anos 60 e 70, pesquisadores australianos publicaram vários trabalhos sobre o desenvolvimento de vacinas atenuadas de B. bovis e B. bigemina, que associadas ao isolado de Anaplasma centrale, organismo naturalmente pouco patogênico, promoviam imunidade contra a babesiose e a anaplasmose. Esta metodologia foi difundida para outros países, entre eles o Brasil, onde se encontra à disposição de veterinários e pecuaristas. Dois tipos de vacinas atenuadas contra a TPB estão sendo utilizados no...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Tickborne diseases.; Babesia Bigemina; Anaplasma Marginale; Anaplasmose; Babesia Bovis; Babesiose; Bovino; Sanidade Animal; Tristeza Parasitaria; Vacinação.; Animal health; Babesiosis; Anaplasmosis; Cattle; Immunization.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/325387

Análise do perfil esterásico como indicador da resistência do carrapato dos bovinos à carrapaticidas.
Provedor de dados: 14
Autores: PEREIRA, C. D.
bitstream/item/76605/1/comtec-166.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Riphicephalus (Boophilus) microplus; Controle; Tick; Acaricide resistence.; Carrapato; Ácaro; Parasito de animal; Acaricida; Bovino; Sanidade Animal.; Control methods.; Cattle.
Ano: 2010
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/881662

Eficiência no manejo reprodutivo: sucesso no rebanho de cria.
Provedor de dados: 14
Autores: SERENO, J. R. B.; LIMA, E. C. N. Z.
Aspectos sanitário na implementação da estação de monta. Nutrição e reprodução de bovinos. Manejo da estação de monta. Sincronizacao do cio em bovinos de corte. Aspectos fisiológicos da fecundação e estabelecimento da prenhez.
Tipo: Livro técnico (INFOTECA-E)
Palavras-chave: Estação de monta; Management; Beeding seasons; Oestrus synchronization.; Bovino; Fisiologia Reprodutiva; Manejo; Nutrição; Reprodução; Sincronização do Cio.; Cattle; Reproduction.; Nutrition.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/325382

Avaliação técnica e operacional do sistema de classificação de pele bovina estabelecido pelo Ministério da Agricultura, Pecuária e Abastecimento (MAPA).
Provedor de dados: 14
Autores: PEREIRA, M. de A.; JACINTO, M. A. C.; MEDEIROS, E. M. C.; TORRES JÚNIOR, R. A. de A.; GOMES, R.
bitstream/CNPGC-2009-09/12113/1/CT35.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Nelore; Avaliação; Mato Grosso do Sul; Brasil; Quality; Evaluation.; Bovino; Couro; Pele; Qualidade.; Nellore; Brazil; Cattle; Leather.; Hides and skins.
Ano: 2007
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/326656

Utilização de ferramentas genômicas na caracterização e seleção genética para maciez da carne em bovinos nelore mocho.
Provedor de dados: 14
Autores: MAGNABOSCO, C. de U.; CASTRO, L. M. de; LOPES, F. B.; EIFERT, E. da C.; OLIVEIRA COSTA, M. F. DE; MAMEDE, M. M. S.; REGITANO, L. C. de A.; TULLIO, R. R.; NASSU, R. T.; PRADO, C. S.; ROSA, G. J. de M.; SAINZ, R. D.
bitstream/item/147911/1/bolpd-331.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Genotipagem; Shear force; Genotypes; Bovines.; Bovino; Gado; Carne; Qualidade.; Cattle; Meat; Quantitative trait loci.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1052500

Hematologia e bioquímica sérica de bovinos curraleiro pé duro infectados por Babesia spp. e Leptospira spp.
Provedor de dados: 14
Autores: JULIANO, R. S.; FIORAVANTI, M. C. S.; MACHADO, R. Z.; ABREU, U. G. P. de; BARINI, A. C.; BORGES, A. C.; PAULA NETO, J. B.; TRINDADE, B. R.
A Babesia spp. e a Leptospira spp. são importantes enfermidades em sistemas de produção pecuária de países tropicais como o Brasil podendo causar alterações laboratoriais em animais clinicamente sadios. Esse trabalho teve por objetivo avaliar os títulos de anticorpos anti-Babesia bovis, anti-Babesia bigemina e anti-Leptospira interrogans, em bovinos da raça Curraleiro Pé Duro e correlacioná-los às características hematológicas e da bioquímica sérica em animais sadios submetidos à infecção natural. Em 2003 foram amostrados dois rebanhos, localizados no Estado de Goiás e Tocantins e avaliadas 282 amostras para detecção de anticorpos anti-B. bovis e anti- B. bigemina e 236 amostras para detecção de anticorpos anti-Leptospira spp. Foram realizados, hemograma,...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Bovino; Doença animal; Cattle; Animal diseases.
Ano: 2017
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1086101

Avaliacao do desempenho de cruzamentos entre racas taurinas e zebuinas em diferentes regioes do Brasil central.
Provedor de dados: 14
Autores: NOBRE, P. R. C.; PORTO, J. C. A.; MATTOS, S. de; ROSA, A. do N.; SILVA, L. O. C. da; MARIANTE, A. da S.; FIGUEIREDO, G. R. de; ABREU, G. P. de.
bitstream/item/137571/1/PESQ-EM-ANDAMENTO-26.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Taurino; America do sul; Brasil; Regiao Centro-Oeste; Desempenho; Breed; West Central Region.; Bovino; Cruzamento; Raça.; South America; Cattle; Crossbreds; Brazil; Zebu.
Ano: 1984
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/319794

Relatório técnico anual do Centro de Pesquisa Agropecuária dos Cerrados 1976.
Provedor de dados: 14
Autores: EMBRAPA. Centro de Pesquisa Agropecuaria dos Cerrados (Planaltina,DF).
bitstream/item/126088/1/relatorio-10.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Agropecuaria; CPAC; Bovino de corte; Diffusion of research; Relief; Production system; Management.; Agricultura; Clima; Cerrado; Difusão de Tecnologia; Manejo; Irrigação; Pesquisa; Nutrição Animal; Recurso Natural; Relevo; Solo; Sistema de Produção; Vegetação.; Animal feeding; Agriculture; Beef cattle; Climate; Cattle; Irrigation; Research; Natural resources; Soil; Vegetation.
Ano: 1976
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/548812

Manejo de touros pós-venda e pré-estação de monta.
Provedor de dados: 14
Autores: SILVA, J. C. B.; SILVA, M. R.
bitstream/item/163390/1/ADM-163-Manejo-Touros.pdf
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Touros; Touro; Manejo; Bovino; Animal husbandry; Cattle.
Ano: 2017
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1074955

Resultados do controle de desenvolvimento ponderal: raça Nelore - 1975/1984.
Provedor de dados: 14
Autores: MARIANTE, A. da S.; NOBRE, P. R. C.; ROSA, A. do N.; EVANGELISTA, S. R. M.
A raça Nelore. Controle do desenvolvimento ponderal. Considerações sobre os resultados do controle de desenvolvimento ponderal da raça Nelore. Categorias dos animais inscritos. Sexo. Regime alimentar. Ano de nascimento. Mérito dos reprodutores.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Nelore; Desenvolvimento.; Bovino; Melhoramento Genético Animal; Performance; Peso.; Nellore; Cattle; Breeding; Weight.
Ano: 1985
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/319406

Sistema para gerenciamento de rebanhos bovinos de corte.
Provedor de dados: 14
Autores: MASSRUHÁ, S. M. F. S.; CARDOSO, E. G.
Este trabalho contempla a descrição do sistema para gerenciamento de rebanhos bovinos de corte, bem como a metodologia utilizada e os resultados intermediarios obtidos no seu desenvolvimento. O sistema vem sendo desenvolvido em parceria com a Embrapa Gado de Corte e com a Embrapa Pecuaria Sudeste.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Rebanho de gado de corte; Pecuária de corte; Software agropecuário; Programa aplicativo.; Administração Rural.; Computer software; Cattle.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/949770

Teste sorológico de imunofluorescência indireta para o diagnóstico da neosporose em bovinos.
Provedor de dados: 14
Autores: ANDREOTTI, R.; MATTOS, M. de F. C.; OLIVEIRA, J. M. de; LOCATELLI-DITTRICH, R.
Diagnóstico da neosporose. Métodos de diagnóstico sorológico. Reação de imunofluorescência indireta para Neospora caninum.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Diagnosis; Immunofluorescence.; Bovino; Elisa; Diagnostico; Imunofluorescência; Neosporose; Neospora Caninum; Sanidade Animal.; Animal health; Cattle; Neosporosis.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/324145

Técnica de produção de gás: adaptações ao método proposto pelo IGER, UK.
Provedor de dados: 14
Autores: THIAGO, L. R. L. de S.; BARROCAS, G. E. G.
O objetivo deste trabalho foi validar o método de avaliação de alimentos para ruminantes, como proposto pelo "Institute of Grassland and Environmental Research" (IGER). Este método e baseado na acumulação de produtos da digestão (gás) em garrafas fechadas de volume fixo, e seu volume calculado em função de variações na pressão interna dessas garrafas. Resultados mostraram que esta técnica e bastante simples, confiável e de custo relativamente baixo.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Ruminante: Bovino; Avaliação; Evaluation.; Alimento; Gás.; Gases; Cattle; Feeds; Ruminants.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/321268

Engorda de bovinos em pastagem cultivada de quicuio da amazônia (Brachiaria humidicola) na ilha de Marajó.
Provedor de dados: 14
Autores: SALIMOS, E. P.; LOURENÇO JUNIOR, J. de B.; CARVALHO, L. O. D. de M.; NASCIMENTO, C. N. B. do; COSTA, N. A. da; DUTRA, S.
bitstream/item/59371/1/CPATU-PA20.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Disponibilidade de pastagem; Ilha de Marajó; Pará; Brasil; Fattening; Stocking density.; Brachiaria Humidicola; Bovino; Capacidade de Suporte; Capim Quicuio; Engorda; Ganho de Peso; Pastagem Cultivada.; Nutrição Animal; Animal nutrition; Amazonia; Cattle; Pastures; Weight gain.
Ano: 1980
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/377573

Diagnóstico e controle da neosporose em bovinos.
Provedor de dados: 14
Autores: ANDREOTTI, R.; LOCATELLI-DITTRICH, R; SOCCOL, V. T.; PAIVA, F.
A neosporose em bovinos é uma doença causada pelo protozoário Neospora caninum, identificado pela primeira vez em 1988, em cães com encefalomielite, o hospedeiro definitivo. Estudos sorológicos de vários países demonstraram o parasita como a maior causa de abortos em rebanhos leiteiros. A doença está amplamente disseminada nos diferentes continentes. A importância econômica da neosporose bovina é atribuida principalmente aos custos associados ao aborto, ao valor dos fetos, à inseminação artificial ou à cobertura, à diminuição da produção de leite, ao aumento do descarte e à reposição dos animais.Em bovinos, os dois mecanismos de infecção por N. caninum são as transferência do parasita da mãe para o feto (transmissão vertical ou infecção congênita) e a...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Controle; Diseases; Biology; Diagnosis; Control.; Biologia; Bovino; Cão; Diagnostico; Doença; Neosporose; Neospora Caninum; Sanidade Animal.; Animal health; Dogs; Cattle; Neosporosis.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/324070

Grau de preferência e índice de valor forrageiro das pastagens nativas consumidas por bovinos no Pantanal.
Provedor de dados: 14
Autores: SANTOS, S. A.; COSTA, C.; POTT, A.; CRISPIM, S. M. A.; SORIANO, B. M. A.; ALVAREZ, J. M.; ORTIZ, A. G.
Os bovinos são criados em sistema de pastejo contínuo no Pantanal, onde tem a oportunidade de selecionar as espécies forrageiras, cuja qualidade das pastagens depende da proporção das espécies forrageiras preferidas. Este trabalho tem como objetivo avaliar o grau de preferência das forrageiras, bem como avaliar o índice de valor forrageiro das áreas de campo limpo e baixadas da fazenda Nhumirim, subregião da Nhecolândia, Pantanal. Em uma unidade de pastejo da fazenda Nhumirim foram efetuados o levantamento das espécies existentes e observação direta do comportamento de consumo por bovino, com o intuito de classificar as espécies da seguinte forma: preferida (P), desejável (D) e indesejável (I). Considerando a quantidade relativa de espécies P, D e I nas...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Bovine; Pasture; Quality.; Bovino; Dieta; Pastagem; Qualidade.; Pantanal; Cattle; Diet.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/811099

O uso da ponta de cana na engorda de novilhos em confinamento.
Provedor de dados: 14
Autores: THIAGO, L. R. L. de S.; SILVA, J. M. da; COSTA, F. P.; CORREA, E. S.
bitstream/item/138481/1/COT-09.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Aspecto economico; Fattening; Feeding; Sugar cane; Economic situation.; Alimentação; Bovino; Confinamento; Digestibilidade; Novilho; Ponta de Cana.; Cattle; Feedlots; Digestibility; Steers.
Ano: 1982
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/321315

Situação atual e perspectivas no controle do carrapato por meio de vacina.
Provedor de dados: 14
Autores: ANDREOTTI, R.; GOMES, A.
bitstream/item/104653/1/Situacao-atual-e-perspectivas.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Controle; Control.; Boophilus Microplus; Bovino; Carrapato; Sanidade Animal; Vacina.; Animal health; Cattle; Ticks; Vaccines.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/322436

Soja na alimentação de bovinos.
Provedor de dados: 14
Autores: THIAGO, L. R. L. de S.; SILVA, J. M. da.
A demanda do mercado por carne de melhor qualidade direciona para uma pecuária de ciclo curto. Nessa situação, dietas com elevados níveis de concentrados são cada vez mais necessárias, para cobrir os déficits nutricionais das pastagens tropicais. A soja, pelas suas características organolépticas, torna-se um produto excelentes para atender a essa demanda. No Brasil são produzidos anualmente mais de 42 milhões de toneladas de soja, resultando em um volume significativo de produtos e subprodutos para a alimentação animal. Na lavoura, da produção total obtida, cerca de 39% são grãos, sendo o restante palhada com potencial para uso na alimentação de ruminantes. Da secagem do grão de soja, resulta o resíduo de limpeza de soja, um subproduto com teor médio de...
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Feeding.; Alimentação; Bovino; Subproduto; Soja.; Cattle; Byproducts; Soybeans.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/321033

Uso direto de fertilizantes fosfatados para suplementação de bovinos no semi-árido.
Provedor de dados: 14
Autores: GUIMARAES FILHO, C.
Importância do fósforo, as fontes mais conhecidas e as fontes alternativas de fósforo - fosfato monoamoníaco e superfosfato tríplo: questão do fluor, econômica e a questão legal.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Suplementação; Fonte; Suplementation.; Alimentação; Bovino; Fosfato; Fósforo.; Grazing; Cattle; Phosphorus.
Ano: 1993
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/132175

Uso da aveia como planta forrageira.
Provedor de dados: 14
Autores: KICHEL, A. N.; MIRANDA, C. H. B.
Época de plantio. Taxa de semeadura. Adubação. Controle de invasoras. Controle de pragas. Principais usos da aveia na alimentação animal. O uso da aveia para feno. O uso da aveia para silagem.
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Alimentação animal; Mato Grosso do Sul; Brasil; Feed grasses; Avenna; Cultivation.; Bovino; Aveia; Pastejo; Planta Forrageira; Plantio.; Animal nutrition; Grazing.; Brazil; Cattle.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/325252

Neosporose: um possível problema reprodutivo para o rebanho bovino.
Provedor de dados: 14
Autores: ANDREOTTI, R.
Neospora. Neosporose em bovinos. Diagnóstico. Prevenção.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Nospora; Brasil.; Bovino; Neosporose; Neospora Caninum; Sanidade Animal.; Reprodução; Animal health; Neospora; Cattle; Brazil; Reproduction.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/324159

Observacoes preliminares sobre a suplementacao da mistura mineral ureia para bovinos em pastejo.
Provedor de dados: 14
Autores: THIAGO, L. R. L. de S.; SILVA, J. M. da.
bitstream/item/138474/1/COT-07.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Suplementacao; Brasil Central; Feeding; Supplements; Fattening; Central Brazil.; Bovino; Mineral; Nutrição; Pastejo; Seca; Uréia.; Terminação; Grazing; Cattle; Dry season; Urea.
Ano: 1981
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/321305

Carrapato dos bovinos: conheça bem para controlar melhor.
Provedor de dados: 14
Autores: FURLONG, J.
A vida do carrapato; A fase de vida livre; A fase parasitária; A relação dos carrapatos com o tempo; O sistema estratégico de controle; A pulverização ou tratamento; Os carrapaticidas; Carrapaticidas de contato; Forforados; Diamidínicos; Piretróides; Fipronil; Thiazolina; Carrapaticidas sistêmicos; Derivados das avermectinas; Fluazuron (inibidor do crescimento); Resistência de carrapatos a carrapaticidas; Rodízio de carrapaticida; O teste de resistência e a escolha do carrapaticida; As vacinas contra os carrapatos; O controle integrado dos carrapatos.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Animal disease; Biology; Bovinae; Bovine; Bovnie; Brasil; Central region; Control; Controle; Controle carrapato; Disease; Metastigmata; Parasita; Pests of animals; Regiao Central; Tick.; Boophilus Microplus; Bovino; Biologia; Carrapaticida; Carrapato; Controle Químico; Doença Animal; Doença; Gado Leiteiro; Gado; Parasito; Praga de Animal.; Brazil; Animal diseases; Dairy cattle; Cattle; Chemical control; Parasites.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/957979

Parte aérea da mandioca na alimentação animal. II. O farelo da parte aérea na silagem do capim-elefante.
Provedor de dados: 14
Autores: CARVALHO, J. L. H. de; PEREIRA, E. A.; COSTA, I. R. S.
bitstream/item/105876/1/comtec-30-3.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Planaltina; Distrito Federal; Brasil.; Bovino; Capim Elefante; Cerrado; Farelo; Folha; Manihot Esculenta; Mandioca; Pennisetum Purpureum; Nutrição Animal; Parte Aérea; Silagem.; Animal nutrition; Animal feeding; Aerial parts; Brazil; Cattle; Bran; Cassava; Leaves; Silage.
Ano: 1984
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/562137

Uso do bagaço de tomate na alimentação de animais.
Provedor de dados: 14
Autores: ALMEIDA, G. F. de.
Verificou-se que o bagaco de tomate apresentou um conteudo de proteina bruto de 18 e 19% permitindo classificar como um residuo de concentrado proteico basico.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Tomato; By-product.; Alimentação; Animal; Bagaço; Tomate.; Cattle; Nutrition.
Ano: 1992
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/131439

Aspectos da cadeia produtiva do couro bovino no Brasil e em Mato Grosso do Sul.
Provedor de dados: 14
Autores: GOMES, A.
Historico da bovinocultura e do mercado do couro no Brasil. E de boa qualidade o couro de bovino produzido no Brasil? Comparativo de valor de producao brasileira de couro entre 1986 e 1995. Producao de couro de Mato Grosso do Sul. Comparativo de perda de valor de couro em mato Grosso do Sul entre 2000 e 2001. Onde comeca a desclassificacao do couro produzido no Brasil? Classificadao do couro provenientes de SP, MT (unico), MG. e RJ. Outras consequencias na cadeia produtiva do couro em Mato Grosso do Sul. Processo de normatizacao e controle de qualidade aplicados pelos curtumes. Como e feita a comercializacao do couro no Brasil? Como e exportado o couro pelo Brasil? Politica de exportacao do couro semi-acabado e acabado. Politica de industrializacao do...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Aspecto economico; Mato Grosso do Sul; Brasil; Agroindustrial complexes; Economic situation.; Bovino; Cadeia Produtiva; Couro.; Cattle; Brazil; Leather.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/319289

Comportamento de gramíneas forrageiras sob condições de pastejo intensivo por bovinos na região semi-árida do Nordeste do Brasil.
Provedor de dados: 14
Autores: OLIVEIRA, M. C. de; SILVA, C. M. M. de S.; ALBUQUERQUE, S. G. de; BERNARDINO, F. A.
O trabalho teve o objetivo de identificar gramíneas forrageiras, capazes de resistir a condições adversas e ao manejo deficiente empregado pelos produtores da egião.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Forrageira; Pastejo intensivo; Nordeste; Pasture grass; Northeast; Bovine.; Bovino; Gramínea; Pastagem.; Nutrição Animal; Animal nutrition; Forage; Grazing intensity.; Cattle.
Ano: 1988
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/132752

Aspectos a considerar no descarte de matrizes bovinas criadas em condições de caatinga.
Provedor de dados: 14
Autores: GUIMARAES FILHO, C.
O estudo foi feito em rebanhos selecionados, submetidos naturalmente a condições de manejo e alimentação superiores as condições do rebanho do semiárido. O descarte deve restringir-se aos aspectos economicamente importantes: insucessos em conceber e parir, incapacidade de criar e desmamar um bom bezerro e problemas de ordem física.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Matriz bovina; Cow; Culling.; Bovino; Produção animal; Caatinga; Gado.; Cattle; Animal production.
Ano: 1988
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/132187

Intoxicacao por oxalatos em vacas lactantes em pastagem de setaria (Setaria anceps stapf cv. kazungula).
Provedor de dados: 14
Autores: SCHENK, M. A. M.; FARIA FILHO, T. T. de; PIMENTEL, D. M.; THIAGO, L. R. L. de S.
bitstream/item/138483/1/COT-10.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Sanidade; Pasture; Health.; Bovino; Intoxicação; Oxalato; Pastagem; Setaria Anceps.; Setária; Cattle; Poisoning.; Oxalates.
Ano: 1982
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/320632

Ticks (Acari: Ixodidae) infesting cattle and some other domestic and wild hosts on the French Mediterranean island of Corsica
Provedor de dados: 5
Autores: Grech-angelini, Sebastien; Stachurski, Frederic; Lancelot, Renaud; Boissier, Jerome; Allienne, Jean-francois; Marco, Sylvain; Maestrini, Oscar; Uilenberg, Gerrit.
Background: Corsica is a mountainous French island in the north-western Mediterranean presenting a large diversity of natural environments where many interactions between domestic animals and wild fauna occur. Despite a favourable context for ticks and tick-borne diseases (TBDs), the tick fauna of Corsica has not systematically been investigated. Methods: For one year (May 2014-May 2015), a survey of ticks infesting cattle was performed in the three Corsican cattle slaughterhouses. Two of these were visited monthly and one quarterly; the ticks were manually collected, just after flaying. Ticks were identified on their morphology; when necessary, some specimens were also molecularly identified by sequencing mitochondrial cox1 (cytochrome c oxidase subunit...
Tipo: Text
Palavras-chave: Ticks (Ixodidae); Cattle; Domestic animals; Wild animals; Molecular identification; Corsica.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00361/47191/71863.pdf

Surgical Anatomical Measurements of Patellar Ligaments for Blind Method of Medial Patellar Desmotomy of Cattle During Upward Patellar Fixation in Bangladesh
Provedor de dados: 77
Autores: Uddin,Mohammad Mejbah; Reza,Md. Salim; Islam,Kh. Nurul; Miazi,Omar Faruk; Ahmed,Syed Sayeem Uddin.
The study was aimed to determine the accurate location of giving incision and the width of the incision required to correct the problem of upward patellar fixation during blind method of medial patellar desmotomy. We took measurements of patellar ligaments in stifle joint of 50 indigenous and 50 crossbred slaughtered cattle without any apparent musculo-skeletal disorders were analysed. The average length and width of lateral, middle, and medial patellar ligaments for indigenous cattle were 9.360 ± 0.339 and 3.056 ± 0.226; 10.230 ± 0.382 and 2.019 ±0.258; 10.519 ± 0.429 and 2.430 ±0.232; for crossbred cattle 10.636 ± 0.601 and 3.608 ± 0.368; 11.580 ± 0.724 and 2.330 ± 0.205; 12.366 ± 0.710 and 2.890 ± 0.234 cm respectively. The average groove width for...
Tipo: Journal article
Palavras-chave: Surgical Anatomy; Medial Patellar Desmotomy; Upward Patellar Fixation; Cattle.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000200005

Ultrastructural Study of Bovine Papillomavirus During Outbreaks in Brazil
Provedor de dados: 77
Autores: Catroxo,M. H. B; Martins,A. M. C. R. P. F; Petrella,S; Souza,F; Nastari,B.D.B.
Papillomaviruses, belonging to the Papillomaviridae family, are small oncogenic viruses, causing papillomas and fibropapillomas in the mucosal and cutaneous epithelia of several animals. In bovine species, thirteen types (BPV 1-13) were characterized to date. In this study, the occurrence of papillomatosis in four outbreaks in cattle herds, coming from Brazilian states were registered. The papillomatous lesions were found located in the teats, udders, head and neck. Under the transmission electron microscope, by the negative staining technique, it was possible to visualized rounded-format papillomavirus, with icosahedral symmetry, characterized as "full" and "empty" particles, measuring on average 60 nm in diameter, in all the 40 samples observed of skin...
Tipo: Journal article
Palavras-chave: Papillomavirus; Cattle; Transmission Electron Microscopy.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000200068

ANNUAL VARIATIONS OF THE SODIUM CHANNEL BLOCKING TOXIN IN VENEZUELAN CATTLE PRONE TO DEVELOP THE BOVINE PARAPLEGIC SYNDROME: ITS DEPENDENCE ON RAIN
Provedor de dados: 79
Autores: SEVCIK,C.; D'SUZE,G.
A characteristic of the bovine paraplegic syndrome (BPS) is ventral or sternal decubitus in animals that make unsuccessful efforts to stand when stimulated. Death occurs after a few days. In a previous work we showed the existence of a sodium channel blocking toxin (SCBT) produced by ruminal bacteria in cattle with or liable to develop BPS. The presence of SCBT in bovine plasma sampled monthly during the rainy and dry seasons in animals without BPS has now been observed. A positive correlation between rain precipitation and plasma toxin levels (Spearman's rank correlation coefficient=0.457, n=135, p&amp;lt;10&lt;img SRC="http:/img/fbpe/jvat/v4n1/image522.gif"&gt; ) was found. Precipitation was 194 (121-289) mm water/month (n= 162 months in 27 years, median...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine paraplegic syndrome (BPS); Cattle; Sodium channel blocking toxin (SCBT); Annual variation; Rain dependence.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301998000100005

Neonatal immune response of Brazilian beef cattle to vaccination with Clostridium botulinum toxoids types C and D by indirect ELISA
Provedor de dados: 80
Autores: Curci,VCM; Nogueira,AHC; Nobrega,FLC; Araujo,RF; Perri,SHV; Cardoso,TC; Dutra,IS.
Types C and D strains of Clostridium botulinum are commonly related to avian and mammalian botulism. Although there are numerous vaccine recommendations, little research has been conducted to indicate the real effectiveness of vaccine timing or the ideal immunization protocol for young beef calves. Four commercially available vaccines, two bivalent (Clostridium botulinum types C and D; vaccines 1 and 2) and two polyvalent (all Clostridium spp. including Clostridium botulinum types C and D; vaccines 3 and 4), that are currently used in Brazilian herds, were tested in order to verify the maternal immune response. One hundred cows, divided into four vaccinated groups and one unvaccinated group, were given a two-dose subcutaneous immunization, at day zero,...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Clostridium botulinum; Neonatal immunity; Cattle; Botulism; Brazil.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992010000300018

Malignant catarrhal fever-like lesions associated with ovine herpesvirus-2 infection in young calves (Bos indicus): a case report
Provedor de dados: 80
Autores: Luvizotto,MCR; Ferrari,HF; Cardoso,TC.
Infection of susceptible ruminants, including domestic cattle (Bos taurus) and American bison (Bison bison), with ovine herpesvirus-2 (OvHV-2) may provoke the fatal vasculitis and lymphoproliferative syndrome, known as malignant catarrhal fever (MCF), reported worldwide. To the best of our knowledge, this is the first report of a clinical case of MCF-like lesions associated with ovine herpesvirus-2 (OvHV-2) infection in young calves (Bos indicus) including central nervous symptoms that occurred in Três Lagoas city, Mato Grosso do Sul state, a border town near São Paulo state, Brazil. The diagnosis was based on typical histological lesions characterized by systemic lymphohistiocytic and fibrinoid vasculitis, confirmed by polymerase chain reaction and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ovine herpesvirus-2; Malignant catarrhal fever (MCF); Meningoencephalitis; Cattle.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992010000100018

Interval between first dose and booster affected antibody production in cattle vaccinated against rabies
Provedor de dados: 80
Autores: Albas,A.; Fontolan,O. L.; Pardo,P. E.; Bremer Neto,H.; Sartori,A.
In this study, we compared the levels of neutralizing antibodies induced by inactivated rabies vaccine in cattle by using three alternative immunization procedures. Forty-five bovines (breed nelore) were then organized in three groups (A, B and C, with 15 animals/group). Group A received only one vaccine dose at day zero and Group B received the first dose at day zero and then another dose at day 30 (early booster). Group C was also immunized with two doses; however, the booster was postponed until day 180 after the first dose (delayed booster). Blood samples were withdrawn at days zero (before the first dose) and 30, 210, 390, and 540 after the beginning of immunization and the antibody titers were evaluated by mouse neutralization test. The protocol used...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rabies; Vaccine; Cattle; Antibody; Neutralization.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992006000300010

Lesions caused by Africanized honeybee stings in three cattle in Brazil
Provedor de dados: 80
Autores: Caldas,Saulo Andrade; Graça,Flávio Augusto Soares; de Barros,Júlia Soares Monteiro; Rolim,Márcia Farias; Peixoto,Tiago da Cunha; Peixoto,Paulo Vargas.
We report three cases of stings by Africanized bees in cattle in the state of Rio de Janeiro, Brazil. Erythema, subcutaneous edema, necrosis accompanied by skin detachment, and subsequent skin regeneration were observed, especially on the head and dewlap. Histopathological examinations performed 45 days later revealed complete skin reepithelialization with moderate dermal fibrosis. The clinical picture and differential diagnosis are discussed in the present manuscript, with a focus on photosensitization, which causes cutaneous lesions on the head (sequela) with cicatricial curving of the ears and can be very similar to what is observed in cattle attacked by swarms of bees. The distinction between photosensitization and bee sting lesions can be made with a...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Cattle; Bees; Sting; Poisoning; Accidents.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992013000100502

Genotyping of Clostridium perfringens associated with sudden death in cattle
Provedor de dados: 80
Autores: Miyashiro,S; Baldassi,L; Nassar,AFC.
Toxigenic types of Clostridium perfringens are significant causative agents of enteric disease in domestic animals, although type E is presumably rare, appearing as an uncommon cause of enterotoxemia of lambs, calves and rabbits. We report herein the typing of 23 C. perfringens strains, by the polymerase chain reaction (PCR) technique, isolated from small intestine samples of bovines that have died suddenly, after manifesting or not enteric or neurological disorders. Two strains (8.7%) were identified as type E, two (8.7%) as type D and the remainder as type A (82.6%). Commercial toxoids available in Brazil have no label claims for efficacy against type E-associated enteritis; however, the present study shows the occurrence of this infection. Furthermore,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Clostridium perfringens; Iota toxin; Sudden death; PCR; Cattle.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992009000300010

Association between handling stress in the corral and rabies antibody titers in selenium-supplemented cattle
Provedor de dados: 80
Autores: Reis,LSLS; Chiacchio,SB; Oba,E; Pardo,PE; Frazatti-Gallina,NM.
This study determined the correlation between serum cortisol levels and rabies antibody titers in cattle primo-vaccinated against rabies and supplemented with dietary selenium (Se). Sixty Nelore male calves (10 to 12 months old) received daily and individual dietary supplementation with 0, 3.6, 5.4 and 6.4 mg Se (groups Gc, G3.6, G5.4 and G6.4, respectively). The animals were vaccinated against rabies (day 0) and subjected to handling stress in the corral for 120 days. Blood sampling procedures were performed on days 0, 15, 30, 60, 90 and 120. Cortisol levels increased until day 90, but had dropped significantly by day 120 (P &lt; 0.01). Rabies antibody titers on days 30 and 90 were similar among Se-supplemented groups; in the control group, rabies...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Cattle; Cortisol; Stress; Rabies immune response; Selenium supplementation.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992009000400015

Species-specificity of a Panel of Prion Protein Antibodies for the Immunohistochemical Study of Animal and Human Prion Diseases
Provedor de dados: 19
Autores: Furuoka, Hidefumi; Yabuzoe, Atushi; Horiuchi, Motohiro; Tagawa, Yuichi; Yokoyama, Takashi; Yamakawa, Yoshio; Shinagawa, Morikazu; Sata, Tetsutaro.
Monoclonal antibodies to the prion protein (PrP) have been of critical importance in the neuropathological characterization of PrP-related disease in men and animals. To determine the influence of species-specific amino-acid substitutions recognized by monoclonal antibodies, and to investigate the immunohistochemical reactivity of the latter, analyses were carried out on brain sections of cattle with bovine spongiform encephalopathy, sheep with scrapie, mice infected with scrapie, and human beings with Creutzfeldt-Jakob disease (CJD) or Gerstmann-Sträussler-Sheinker disease (GSS). Immunoreactivity varied between the antibodies, probably as the result of differences in the amino-acid sequence of the prion protein in the various species. Some monoclonal...
Palavras-chave: BSE; Cattle; CJD; GSS disease; Man; Mouse; Scrapie; Sheep.
Ano: 2007
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1054

Detection of the nonsense mutation of OPA3 gene in Holstein Friesian cattle with dilated cardiomyopathy in Japan
Provedor de dados: 19
Autores: HORIUCHI, Noriyuki; KUMAGAI, Daishiro; MATSUMOTO, Kotaro; INOKUMA, Hisashi; FURUOKA, Hidefumi; KOBAYASHI, Yoshiyasu; 松本, 高太郎; 猪熊, 壽; 古岡, 秀文; 古林, 与志安.
Bovine dilated cardiomyopathy (DCM) is an autosomal recessive genetic disorder causing congestive heart failure and subsequent death. Recently, a nonsense mutation c.343C&gt;T in the bovine optic atrophy 3 (OPA3) gene had been reported to cause the DCM in Holstein cattle in Switzerland. However, the mutation has not been confirmed in bovine DCM outside Switzerland. Nine Holstein Friesian cows that were macroscopically and histologically diagnosed with or suspected of DCM and 12 control cows kept in Japan were tested for the mutation. The mutation surrounding OPA3 DNA fragment was amplified by PCR and subjected to direct sequences. The homogeneous c.343C&gt;T mutation was proved to occur in all the affected cows and not in the control cows. The present...
Palavras-chave: Cattle; Dilated cardiomyopathy; Nonsense mutation; OPA3 gene.
Ano: 2015
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4208

A Mechanism of Excessive Accumulation of Abomasal Gas in Vagotomized Cattle Determined using Fluoroscopy
Provedor de dados: 19
Autores: ITOH, Megumi; SASAKI, Naoki; KAWAMOTO, Satoshi; YAMADA, Haruo; INOKUMA, Hisashi; 佐々木, 直樹; 猪熊, 壽.
To better understand the mechanism of excessive gas accumulation in the abomasum in bovine abomasal displacement, we performed gastric fluoroscopy in vagotomized cattle. Fifteen 6-month-old Holstein steers were divided into three groups: a non-vagotomized control group (Group C; n=5), a ventral thoraco-vagotomized group (Group V; n=5), and a dorsal and ventral thoraco-vagotomized group (Group DV; n=5). These groups were examined by fluoroscopy before and during a 5-week observation period after surgery. In Group C, no change was observed throughout the observation period. In Group DV, immediately after surgery, reticuloruminal motility was completely absent and ruminal distention was seen. Two weeks after surgery, abnormal reticulum motility and increased...
Palavras-chave: Abomasum gas; Cattle; Displaced abomasum; Vagotomy.
Ano: 2011
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3888

An Epidemiological Survey of Ticks (Acari: Ixodidae) Infesting Cattle in the Eastern Free State Province of South Africa: Attachment Preferences
Provedor de dados: 19
Autores: Hlatshwayo, M.; Mbati, P. A.; Dipeolu, O. O.
Palavras-chave: Attachment preferences; Ticks; Cattle.
Ano: 2000
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/339

Use of Contrast-Enhanced CT in the Diagnosis of Abscesses in Cattle
Provedor de dados: 19
Autores: LEE, Ki-Ja; KISHIMOTO, Miori; SHIMIZU, Junichiro; KOBAYASHI, Yoshiyasu; MATSUMOTO, Kotaro; SASAKI, Naoki; ISHII, Mitsuo; INOKUMA, Hisashi; IWASAKI, Toshiroh; MIYAKE, Yoh-Ichi; YAMADA, Kazutaka; 古林, 与志安; 松本, 高太郎; 佐々木, 直樹; 石井, 三都夫; 猪熊, 壽; 山田, 一孝.
We report here the non-contrast and contrast-enhanced computed tomography performed in two calves with brain abscess and multiple pulmonary abscesses with pharyngeal abscess, respectively. Contrast-enhanced computed tomography was useful in the diagnosis of these diseases in both calves. The diseases were confirmed by histopathological examination.
Palavras-chave: Abscess; Cattle; Contrast-enhanced CT; Diagnosis.
Ano: 2011
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3891

A PCR-based survey of animal African trypanosomosis and selected piroplasm parasites of cattle and goats in Zambia
Provedor de dados: 19
Autores: Musinguzi, Simon Peter; Suganuma, Keisuke; Asada, Masahito; Laohasinnarong, Dusit; Sivakumar, Thillaiampalam; Yokoyama, Naoaki; Namangala, Boniface; Sugimoto, Chihiro; Suzuki, Yasuhiko; Xuan, Xuenan; Inoue, Noboru.
We screened cattle and goats from the districts of Chama, Monze and Mumbwa in Zambia for animal African trypanosomes, Babesia bigemina and Theileria parva using PCRs; 38.1% of the samples tested positive for at least one of the parasite species. The most common parasite was Trypanosoma vivax (19.8%). Its incidence was significantly higher in goats than in cattle, (P&lt;0.05). B. bigemina was found in samples from all the three areas, making it the most widespread of the parasites in Zambia. Among the tested samples, 12.0% of the positive samples were mixed infections. There were significant differences in the infection rates of T. vivax (Mumbwa had a significantly higher infection rate [39.6%, P&lt;0.0001]), Th. parva (Monze had the only cases...
Palavras-chave: Animal African trypanosomosis; Cattle; Goat; Piroplasmosis; Zambia.
Ano: 2016
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4389

The Effect of Single Nucleotide Polymorphisms in the Tumor Necrosis Factor-α Gene on Reproductive Performance and Immune Function in Dairy Cattle
Provedor de dados: 19
Autores: KAWASAKI, Yurie; AOKI, Yuka; MAGATA, Fumie; MIYAMOTO, Akio; KAWASHIMA, Chiho; HOJO, Takuo; OKUDA, Kiyoshi; SHIRASUNA, Koumei; SHIMIZU, Takashi; 宮本, 明夫; 清水, 隆.
The present study aimed to assess the effect of polymorphisms in the tumor necrosis factor α (TNF-α) promoter (A/A, A/G and G/G) and exons (T/T, T/C and C/C) on immune function and reproductive performance in dairy cows. The occurrence of the first postpartum ovulation within 3 weeks in the cows with the TNF-α promoter A/G and G/G genotypes was higher than in the A/A group. Among the different TNF-α exon genotypes, the occurrence of early first postpartum ovulation was higher in the T/C and C/C genotype groups than in the T/T group. Single nucleotide polymorphisms (SNPs) in the TNF-α gene did not affect the rate of artificial insemination (AI) or duration from parturition to next conception (days open). The apoptosis rate of polymorphonuclear leukocytes...
Palavras-chave: Cattle; Immune function; Polymorphism; Reproductive performance; Tumor necrosis factor α (TNF-α).
Ano: 2014
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3934

Thymic Lymphosarcoma with Brain Involvement in a Holstein Heifer
Provedor de dados: 19
Autores: TAWFEEQ, Mohammad Monir; MIURA, Saori; SUGIMOTO, Kazuya; KOBAYASHI, Yoshiyasu; INOKUMA, Hisashi; 古林, 与志安; 猪熊, 壽.
An 8-month-old Holstein heifer with cervical enlargement was suspected of thymic lymphosarcoma given clinical signs of depression, tendency to lie down, cervical mass, jugular vein distension, conjunctival hyperemia, and ruminal tympany. Unilateral Horner’s syndrome was also observed. Increased serum total lactate dehydrogenase (LDH), LDH isozyme (LDH-2, and LDH-3) and serum thymidine kinase activity were observed. The findings of fine needle aspiration cytology of the cervical mass revealed large lymphoblasts with mitoses present. These findings strongly suggested the diagnosis of lymphosarcoma. Necropsy revealed a large mass in the cervical thymic region, which compressed the esophagus and trachea. Cranial masses in the frontal sinus and multiple...
Palavras-chave: Brain involvement; Cattle; Thymic lymphosarcoma.
Ano: 2012
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4098

ウシ卵巣における糖質コルチコイドの生理的役割の評価
Provedor de dados: 19
Autores: 手塚, 雅文.
平成13年度～平成14年度科学研究費補助金（基盤研究C2））研究成果報告書13660277
Palavras-chave: 11β-HSD; Follicle; Corpus luteum; Cattle.
Ano: 2003
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/781

High Genetic Diversity of Anaplasma marginale Detected from Philippine Cattle
Provedor de dados: 19
Autores: Ybañez, Adrian Patalinghug; Ybañez, Rochelle Haidee D.; Claveria, Florencia G.; Cruz-Flores, Mary Jane; Xuenan, Xuen; Yokoyama, Naoaki; Inokuma, Hisashi.
A total of 658 cattle in 6 provinces in the Philippines were screened for Anaplasma marginale infection by using a diagnostic heat-shock operon (groEL) gene-PCR assay. The screening-positive samples were further tested using the major surface antigen protein 1a (Msp1a) gene-PCR assay. Screening PCR results showed 130 cattle (19.8%) were positive for the A. marginale infection. Subsequent amplification using the Msp1a gene only showed 93 samples (14.1%) to be positive. In addition, 37 tandem-repeat structures, including 20 novel structures, and 41 distinct genotypes were identified. Interestingly, multiple infections of 4 different genotypes were also observed in A. marginale-infected cattle. The present study demonstrated the prevalence and...
Palavras-chave: Anaplasma marginale; Cattle; GroEL; Msp1a; Philippines.
Ano: 2014
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4011

Changes in Plasma Metabolic Hormone Concentrations During the Ovarian Cycles of Japanese Black and Holstein Cattle
Provedor de dados: 19
Autores: KAWASHIMA, Chiho; KIDA, Katsuya; HAYASHI, Ken-Go; AMAYA MONTOYA, Carlos; KANEKO, Etsushi; MATSUNAGA, Nobuyoshi; SHIMIZU, Takashi; MATSUI, Motozumi; MIYAKE, Yoh-Ichi; SCHAMS, Dieter; MIYAMOTO, Akio; 川島, 千帆; 木田, 克弥; 清水, 隆; 松井, 基純; 三宅, 陽一; 宮本, 明夫.
The aim of the present study was to investigate the changing profiles of plasma metabolic hormones during the ovarian cycles of beef and dairy cattle. We used 16 non-pregnant, non-lactating Japanese Black beef cattle (6 heifers and 10 cows; parity=2.3 ± 0.8) and 12 multiparous Holstein dairy cows (parity=3.0 ± 0.3). Blood samples for hormonal analysis (growth hormone, GH; insulin-like growth factor-I, IGF-1; insulin; and progesterone, P4) were obtained twice weekly for 40 days before artificial insemination for Japanese Black cattle and from 50 to 100 days postpartum for Holstein cows. Luteal phases were considered normal if the P4 concentrations for at least 3 time points over the course of 7 days remained above 1 ng/ml and at least 2 of the time points...
Palavras-chave: Cattle; Insulin-like growth factor-I; Ovarian cycle; Progesterone.
Ano: 2007
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2984

Polysplenia syndrome with duodenal and pancreatic dysplasia in a Holstein calf : A case report
Provedor de dados: 19
Autores: Kondoh, Daisuke; Kawano, Tomomi; Kikuchi, Tomoaki; Hatate, Kaoru; Watanabe, Kenichi; Sasaki, Motoki; Yamagishi, Norio; Inokuma, Hisashi; Kitamura, Nobuo.
Background: Laterality disorders of the abdominal organs include situs inversus totalis that mirrors the arrangements of all internal organs and heterotaxy syndrome (situs ambiguus) in which the thoracic or abdominal organs are abnormally arranged. Heterotaxy is often accompanied by multiple congenital malformations, and it generally comprises asplenia and polysplenia syndromes. To our knowledge, polysplenia syndrome has been reported in only three cattle, and computerized tomographic (CT) images of these animals were not obtained. Case presentation: A six-month-old Holstein heifer had ruminal tympani and right abdominal distension. CT imaging showed that the rumen occupied the right side of the abdominal cavity, the omasum and abomasum occupied the left...
Palavras-chave: Cattle; Duodenum; Dysplasia; Heterotaxy; Laterality disorder; Malposition; Pancreas; Polysplenia.
Ano: 2017
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4563

Genotype and subtype analyses of Cryptosporidium isolates from cattle in Hungary
Provedor de dados: 19
Autores: Plutzer, Judit; Karanis, Panagiotis.
Seventy-nine faecal samples from calves with diarrhoea were collected on 52 farms from different counties in Hungary to investigate the species, genotypes and subtypes of Cryptosporidium in calves. Oocysts from faecal sample collected from each animal were concentrated using sucrose gradient centrifugation and examined by immunofluorescence assay (IFA). Genomic DNA was extracted from microscopically positive samples and nested PCR was performed to amplify the partial SSU rRNA and GP60 genes of Cryptosporidium that were subsequently digested by SspI, VspI and MboII restriction enzymes to determine the Cryptosporidium species and genotype present. Cryptosporidium parvum was detected in 21 samples while the Cryptosporidium deer-like genotype was found in...
Palavras-chave: Cryptosporidium parvum; Cattle; Genotype; Subgenotype; Hungary.
Ano: 2007
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1056

Towards a preventive strategy for neosporosis: Challenges and future perspectives for vaccine development against infection with Neospora caninum
Provedor de dados: 19
Autores: Nishikawa, Yoshifumi.
Neosporosis is caused by the intracellular protozoan parasite Neospora caninum. This major disease-causing pathogen is responsible for inducing abortion in cattle, and these adverse events occur sporadically all over the world, including Japan. Currently, there are no vaccines on the market against infection with N. caninum. Because live and attenuated vaccines against N. caninum have had safety and effectiveness issues, development of a next-generation vaccine is urgently required. To develop a vaccine against neosporosis, my laboratory has been focused on the following: 1) understanding the host immune responses against Neospora infection, 2) identifying vaccine antigens and 3) developing an effective antigen-delivery system. The research strategy taken...
Palavras-chave: Adjuvant; Cattle; Neospora caninum; Neosporosis; Vaccine.
Ano: 2017
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4544

脳幹部膿瘍により神経症状を呈したホルスタイン種子牛の1 例
Provedor de dados: 19
Autores: 松本, 高太郎; 村上, 智亮; 菅生, 樹春; 山田, 一孝; 古林, 与志安; 松井, 高峯; 猪熊, 壽; MATSUMOTO, Kotaro; MURAKAMI, Tomotaka; SUGO, Kiharu; YAMADA, Kazutaka; KOBAYASHI, Yoshiyasu; MATSUI, Takane; INOKUMA, Hisashi.
17日齢のホルスタイン種雌子牛が，神経症状を示した. 病畜は頭部を左後方に折り曲げて伏臥姿勢を示し，時折自力で起立したがすぐに倒れ歩行不能であった.　神経学的検査では右の対光反射，威嚇瞬き反射，眼瞼反射， および音響耳介反射が消失していた.　ビタミンB1，およびデキサメサゾンの投与により第7病日に歩行可能となったものの左への斜頸・旋回が認められ，神経学的検査所見に改善は認められなかった.　第7病日に病理解剖を行い，肉眼的には橋の断面右側に直径1cm大の膿瘍を認め，嫌気培養にてFusobacterium necrophorumが検出された.　左側への斜頸，聴覚の消失等の脳神経疾状は，橋の右側の膿瘍により内耳神経等の脳神経核が圧迫された結果出現した聴覚障害，平衡障害のためと考えられた. A 17-day-0ld female Holstein calf exhibited the following neurological symptoms: the calf bent its neck to the left，turning its face backward and could stand alone，but would fall within a short time. Neurological examination further revealed losses of pupillary light reflex， menace response，palpebral reflex，and hearing on the right side. After administration of dexamethasone and vitamin B1，the calf was able to walk...
Palavras-chave: 脳幹部膿瘍; 牛; Fusobacterium necrophorum; Brain stem abscess; Cattle.
Ano: 2010
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2945

Relationship between Ovarian Weight and Follicular Population in Heifers
Provedor de dados: 19
Autores: MURASAWA, Maya; TAKAHASHI, Tsuyoshi; NISHIMOTO, Hiromi; YAMAMOTO, Sawa; HAMANO, Seizo; TETSUKA, Masafumi; 手塚, 雅文.
The size of the ovary varies substantially among cattle. This variation may influence the potential of the ovary to produce follicles. In the present study, we examined whether a relationship exists between the weight of the ovary and the number of antral follicles ≥1 mm. Paired ovaries were obtained from Holstein × Japanese Black F1 heifers. Follicles were classified into three size categories (small: 1.0 - &lt; 5.0 mm, medium: 5.0 - &lt; 8.5 mm and large: ≥ 8.5 mm), and the number of follicles in each category was recorded. Large variations in the weight of ovaries and the number of follicles were observed among animals. Significant positive correlations (r≥0.4, P&lt;0.001) were found between the weight of intact ovaries and the number of follicles in...
Palavras-chave: Cattle; Follicular development; Follicular population; Ovarian weight.
Ano: 2005
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3035

Seroprevalence of antibody to NcSAG1 antigen of Neospora caninum in cattle from Western Java, Indonesia
Provedor de dados: 19
Autores: ICHIKAWA-SEKI, Madoka; GUSWANTO, Azirwan; ALLAMANDA, Puttik; MARIAMAH, Euis Siti; WIBOWO, Putut Eko; NISHIKAWA, Yoshifumi.
Neospora caninum can cause fetal abortion and neonatal mortality in cattle, and is a cause of economic concern worldwide. This study aimed to determine the prevalence of Neospora caninum-specific antibodies in cattle from Western Java, Indonesia. Serum samples from 991 cattle from 21 locations were tested for antibodies to N. caninum by using an enzyme-linked immunosorbent assay (ELISA) on the basis of recombinant NcSAG1. The overall seroprevalence was 16.6%, ranging from 0 to 87.5% in the sampled locations. The results of this study indicate latent infection rates of sampled animals were different in each location. Further studies are necessary to elucidate the relationship between N. caninum infection and abortion in cattle, and to identify risk factors...
Palavras-chave: Cattle; ELISA; Indonesia; NcSAG1; Neospora caninum.
Ano: 2016
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4250

Effect of Chronic Hemoplasma Infection on Cattle Productivity
Provedor de dados: 19
Autores: TAGAWA, Michihito; YAMAKAWA, Kazuhiro; AOKI, Takahiro; MATSUMOTO, Kotaro; ISHII, Mitsuo; INOKUMA, Hisashi; 滄木, 孝弘; 松本, 高太郎; 石井, 三都夫; 猪熊, 壽.
The present study evaluated the effect of hemoplasmosis on cattle productivity. Prevalence of bovine hemoplasma was examined by polymerase chain reaction (PCR) using whole blood samples collected from 93 breeding cows and their 71 calves in Hokkaido, Japan. Monthly milk production records and other clinical data were compared between Mycoplasma wenyonii (Mw)-infected, “Candidatus Mycoplasma haemobos” (CMh)-infected, co-infected and PCR-negative groups. Blood chemical parameters were obtained from the 93 cows and 64 calves. PCR results showed that 89.2% (83/93) of cows and 14.1% (10/71) of calves were positive for bovine hemoplasma. Based on productivity data obtained from the 93 cows, Mw-infected, CMh-infected and co-infected cows had significantly lower...
Palavras-chave: Cattle; Direct PCR; Hemoplasma; Productivity.
Ano: 2013
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3870

A longitudinal study of Babesia and Theileria infections in cattle in Sri Lanka
Provedor de dados: 19
Autores: Sivakumar, Thillaiampalam; Kothalawala, Hemal; Weerasooriya, Gayani; Seekkuge Susil Priyantha Silva; Puvanendiran, Sumathy; Munkhjargal, Tserendorj; Igarashi, Ikuo; Yokoyama, Naoaki.
Throughout the world, infections with the Babesia and Theileria parasites often result in economically significant clinical disease in cattle. We conducted a longitudinal survey of Babesia and Theileria infections in cattle from the Polonnaruwa (n?=?75; dry zone) and Nuwara Eliya (n?=?161; wet zone) districts of Sri Lanka. DNA from blood samples collected in June, September, and December 2014 and March 2015 was screened for Babesia bovis, Babesia bigemina, Theileria annulata and Theileria orientalis using specific polymerase chain reactions (PCRs). Additionally, serum samples collected from the animals were screened using enzyme-linked immunosorbent assays (ELISAs) to detect B. bovis- and B. bigemina-specific antibodies. All of the animals surveyed in...
Palavras-chave: Babesia; Cattle; Longitudinal study; Sri Lanka; Theileria.
Ano: 2016
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4567

A Review of the Taxonomy of Theileria sergenti/buffeli/orientalis Group Parasites in Cattle
Provedor de dados: 19
Autores: Fujisaki, Kozo.
The controversial circumstances relating to the classification of the benign Theileria species from Japan, Australia and Britain, which are frequently referred to as T. sergenti/buffeli/orientalis group parasites, was reviewed. Our recent systematic comparisons suggest a possibility that the Japanese T. sergenti (minor piroplasm in common parlance) might be a new species and the Australian T. buffeli and British T. orientalis might belong to one and the same species. The necessity for the review of the genus name for these benign Theileria species was also briefly discussed after the morphological studies of their schizogony.
Palavras-chave: Theileria sergenti/buffeli/orientalis; Taxonomy; Cattle.
Ano: 1992
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/168

Phylogenetic analysis of Theileria orientalis in cattle bred in Fujian province，China
Provedor de dados: 19
Autores: Sivakumar, T; Khukhuu, A; Igarashi, I; Xuan, X; Guo, G; Huang, X; Yokoyama, N; 五十嵐, 郁男; 玄, 学南; 横山, 直明.
A molecular epidemiological survey on Theileria orientalis was conducted in a cattle population of Fujian province in China. The screening polymerase chain reaction assay showed that 23 (45%) of 51 blood samples were positive for T. orientalis. DNA sequencing of the major piroplasm surface antigen-encoding gene indicated the presence of 3 different genotypes in the study area(types 1，2，and 5) and identified T. orientalis types 1 and 2 as the major genotypes in the sample population.  Because type 2 (Ikeda type in Japan) has been recognized as a relatively virulent genotype of T. orientalis，control and preventive measures to minimize the incidence of infectious diseases among cattle bred in China are necessary.
Palavras-chave: Theileria orientalis; Cattle; China; Epidemiology; Genotype.
Ano: 2011
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3098

Molecular Epidemiological Survey of Theileria orientalis in Thua Thien Hue Province, Vietnam
Provedor de dados: 19
Autores: KHUKHUU, Altangerel; LAN, Dinh Thi Bich; LONG, Phung Thang; UENO, Akio; LI, Yan; LUO, Yuzi; MACEDO, Alan Caine Costa de; MATSUMOTO, Kotaro; INOKUMA, Hisashi; KAWAZU, Shin-Ichiro; IGARASHI, Ikuo; XUAN, Xuenan; YOKOYAMA, Naoaki; 松本, 高太郎; 猪熊, 壽; 河津, 信一郎; 五十嵐, 郁男; 玄, 学南; 横山, 直明.
Theileria orientalis is a benign bovine protozoan parasite that occasionally causes serious economic loss in the livestock industry. We report the findings of a molecular epidemiological survey of T. orientalis in 94 Vietnamese yellow cattle, 43 water buffaloes, 21 sheep, 21 goats and 85 blood-sucking ticks of cattle in the Thua Thien Hue province of Vietnam. The major piroplasm surface protein (MPSP) gene of T. orientalis was detected using polymerase chain reaction from 13 cattle (13.8%), 11 water buffaloes (25.6%), 1 sheep (4.8%) and 9 ticks (10.6%). Phylogenetic analysis using MPSP gene sequences showed the presence of seven genotypes, four previously categorized genotypes (Types 1, 3, 5 and 7) and three new genotypes (Types N-1, N-2 and N-3).
Palavras-chave: Cattle; Genotype; MPSP; Theileria orientalis; Vietnam.
Ano: 2011
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3585

Comparative polypeptide profiles of whole cell lysate antigens of Trypanosoma evansi isolated from three different hosts of eastern India
Provedor de dados: 19
Autores: Laha, R; Sasmal, N.K; Bandyopadhyay, S.
Trypanosoma evansi from buffalo, cattle and horse isolates were purified by Diethylaminoethyl cellulose column chromatography. The purified trypanosomes from each sources were used separately for preparation of whole cell lysate antigens. A comparative study on polypeptide pattern of whole cell lysate antigens of these three isolates of T. evansi was studied. It showed a total of 11 dominant polypeptide bands with relative molecular weight ranging from 95 to 13 kDa, when resolved in 10% sodium dodecyl sulphate polyacrylamide gel electrophoresis and stained with Coomassie brilliant blue. Except some minor differences between the relative molecular weight of isolates in a particular region, the polypeptide profiles of these three isolates did not resolve any...
Palavras-chave: Buffalo; Cattle; Horse; Polypeptide profiles; Trypanosoma evansi.
Ano: 2008
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1833

Seroprevalence of Babesia bovis, B-bigemina, Trypanosoma evansi, and Anaplasma marginale antibodies in cattle in southern Egypt
Provedor de dados: 19
Autores: Fereig, Ragab M.; Mohamed, Samy G. A.; Mahmoud, Hassan Y. A. H.; AbouLaila, Mahmoud Rezk; Guswanto, Azirwan; Thu-Thuy Nguyen; Mohamed, Adel Elsayed Ahmed; Inoue, Noboru; Igarashi, Ikuo; Nishikawa, Yoshifumi.
Babesia bovis, B. bigemina, Trypanosoma evansi, and Anaplasma marginate infections cause serious diseases in cattle, and are primarily transmitted by arthropod vectors (ticks for B. bovis, B. bigemina, and A. marginate and various types of flies for T. evansi). In the last few years, there have been many reports of a high prevalence of certain protozoan infections in northern Egypt, but no accurate or adequate data are available for the southern regions. Therefore, in this study, we screened for evidence of such diseases in economically important cattle species using serum samples. The seroprevalence of protozoan infections in cattle was determined with enzyme-linked immunosorbent assays using species-specific diagnostic antigens. In a total of 301 cattle...
Palavras-chave: Babesia bovis; Babesia bigemina; Trypanosoma evansi; Anaplasma marginale; Cattle; Egypt.
Ano: 2017
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4579

Specific Molecular Detection of Anaplasma sp. Closely Related to Anaplasma phagocytophilum in Ixodid Ticks and Cattle in a Pastureland in Hokkaido, Japan
Provedor de dados: 19
Autores: Ybañez, Adrian P.; Tagawa, Michihito; Matsumoto, Kotaro; Kishimoto, Toshio; Yokoyama, Naoaki; Inokuma, Hisashi; 横山, 直明; 猪熊, 壽.
http://online.liebertpub.com/doi/abs/10.1089/vbz.2012.0963
Palavras-chave: Anaplasma sp.; Anaplasma phagocytophilum; Heat-shock operon; Ticks; Cattle.
Ano: 2013
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3834

STUDIES ON TICKS (ACARI : IXODIDAE) INFESTING CATTLE IN THE EASTERN FREE STATE PROVINCE OF SOUTH AFRICA : INDIVIDUAL HOST VARIATION
Provedor de dados: 19
Autores: Hlatshwayo, M.; Mbati, P. A.; Dipeolu, O. O.
Palavras-chave: Cattle; Ticks; Host resistance.
Ano: 2002
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/627

Zygomycotic Mediastinal Lymphadenitis in Beef Cattle with Ruminal Tympany
Provedor de dados: 19
Autores: NISHIMURA, Maki; TOYOTA, Yumi; ISHIDA, Yoshikazu; NAKAYA, Hideki; KAMEYAMA, Kyohko; NISHIKAWA, Yoshifumi; MIYAHARA, Kazuro; INOKUMA, Hisashi; FURUOKA, Hidefumi; 西川, 義文; 猪熊, 壽; 古岡, 秀文.
A 9-month-old steer was autopsied due to recurrent ruminal tympany. A macroscopic examination found an enlarged caudal mediastinal lymph node, and a section of the lymph node revealed necrosis with marked calcification, similar to tuberculous lymphadenitis. Histopathologically, the lesion consisted of multiple coagulative necrotic foci and fibrosis with macrophage, lymphocyte, eosinophil and multinucleated giant cell infiltration. Non-uniform width hyphae were detected in the necrotic area and within the cytoplasm of the multinucleated giant cells, and they were found to be anti-Rhizopus arrhizus antibody positive in an immunohistochemical examination. Therefore, the steer was diagnosed with necrotic caudal mediastinal lymphadenitis due to zygomycetes...
Palavras-chave: Cattle; Necrotic lymphadenitis; Ruminal tympany; Zygomycosis.
Ano: 2014
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3943

Specific Molecular Detection and Characterization of Anaplasma marginale in Mongolian Cattle
Provedor de dados: 19
Autores: YBAÑEZ, Adrian Patalinghug; SIVAKUMAR, Thillaiampalam; BATTSETSEG, Badgar; BATTUR, Banzragch; ALTANGEREL, Khukhuu; MATSUMOTO, Kotaro; YOKOYAMA, Naoaki; INOKUMA, Hisashi; 松本, 高太郎; 横山, 直明; 猪熊, 壽.
Anaplasma marginale is an etiologic agent of bovine anaplasmosis. This study aimed to molecularly detect and characterize A. marginale that is prevalent in Mongolian cattle populations. A highly specific and sensitive nested PCR (nPCR) method based on the Msp5 gene was developed to detect A. marginale (Msp5 nPCR). The method detected A. marginale from the positive DNA samples obtained from different countries, while no amplicons were observed from DNA samples of several other bovine blood pathogens tested. The detection limit of Msp5 nPCR was determined to be 2 copies/μl. The method was tested against field blood DNA samples prepared from 300 Mongolian cattle in 2010. Results indicated a prevalence rate of 8.7% (26 of 300). On the other hand, partial DNA...
Palavras-chave: Anaplasma marginale; Cattle; Mongolia; Msp5; PCR.
Ano: 2013
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3867

Effects of various nutrients and renewal of medium on in vitro development of bovine oocytes matured and fertilized in vitro
Provedor de dados: 19
Autores: FUKUI, Yutaka; LEE, Eun Song; KANEZAWA, Yuka; 福井, 豊; 李, 殷松; 金澤, 由佳.
http://www.obihiro.ac.jp/~library/kenkyu.html
Palavras-chave: Amino acid; Glucose; In vitro development; Oocyte; Cattle.
Ano: 1995
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3790

First Molecular Characterization of Anaplasma marginale in Cattle and Rhipicephalus (Boophilus) microplus Ticks in Cebu, Philippines
Provedor de dados: 19
Autores: YBAÑEZ, Adrian Patalinghug; SIVAKUMAR, Thillaiampalam; YBAÑEZ, Rochelle Haidee Daclan; RATILLA, Jowarren Catingan; PEREZ, Zandro Obligado; GABOTERO, Shirleny Reyes; HAKIMI, Hassan; KAWAZU, Shin-ichiro; MATSUMOTO, Kotaro; YOKOYAMA, Naoaki; INOKUMA, Hisashi; 河津, 信一郎; 松本, 高太郎; 横山, 直明; 猪熊, 壽.
Anaplasma marginale has been detected in the Philippines only by peripheral blood smear examination and serological methods. This study generally aimed to molecularly detect and characterize A. marginale in cattle and ticks in Cebu, Philippines. A total of 12 bovine blood samples and 60 Rhipicephalus (Boophilus) microplus ticks were collected on the Cebu Island in 2011. 16S rRNA-based screening-PCR and DNA sequencing revealed 8 cattle (66.7%) and 8 ticks (13.3%) to be positive for A. marginale, and 1 tick (1.7%) to be positive for A. centrale. Selected positive DNA samples were further characterized based on 16S rRNA (longer sequence), Msp5, Msp1α,gltA and groEL genes for phylogenetic analyses. Sequence identities of partial DNA fragments of A. marginale...
Palavras-chave: Anaplasma marginale; Cattle; PCR; Philippines; Rhipicephalus (Boophilus) microplus.
Ano: 2013
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3866

Babesia ovata: Taxonomy, phylogeny and epidemiology
Provedor de dados: 19
Autores: Sivakumar, Thillaiampalam; Igarashi, Ikuo; Yokoyama, Naoaki.
Babesia ovata, which is transmitted by Haemaphysalis longicornis, is an intraerythrocytic protozoan parasite of cattle. Based on its morphology, B. ovata is classified as a large-type Babesia. The developmental stages of B. ovata have been described both in cattle and the tick vector. In infected adult female ticks, the parasite is transovarially transmitted to the tick eggs. The sexual reproduction of B. ovata has been demonstrated in the tick midgut. The diagnostic tools that are currently available for the specific detection of B. ovata in cattle include microscopy and polymerase chain reaction assays. The development of improved molecular and serological diagnostic tools has been constrained by the limited availability of genetic data. B. ovata has...
Palavras-chave: Babesia ovata; Cattle; Epidemiology; Phylogeny; Taxonomy.
Ano: 2016
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4555

ホルスタイン育成牛にみられた上衣芽腫の1 例
Provedor de dados: 19
Autores: 田川, 道人; 谷, 夏深; 梶原, 綾乃; 古林, 与志安; 古岡, 秀文; 松井, 高峯; 石井, 三都夫; 猪熊, 壽; TAGAWA, Michihito; TANI, Natsumi; KAJIWARA, Ayano; KOBAYASHI, Yoshiyasu; FURUOKA, Hidefumi; MATSUMOTO, Kohtaro; ISHII, Mitsuo; INOKUMA, Hisashi.
10 カ月齢のホルスタイン種雌育成牛が急性に斜頸，旋回，後弓反張，意識混濁の症状を呈した．大脳皮質壊死症を疑 い，ビタミンB1 製剤，コルチコステロイドおよび抗生物質による治療を実施したが反応せず，予後不良と判定された． 病理解剖により小脳に直径35. cm 大の腫瘤が確認され，左右側脳室および中脳水道の拡張がみられた．本症例は小脳腫 瘍による周辺部の圧迫および腫瘍の二次的圧迫による脳脊髄液流出障害により発生した内水頭症により，小脳徴候だけ でなく大脳および脳幹症状も出現したものと考えられた．病理組織学的検索の結果，本症例は上衣芽腫と診断された． A 10-month-old female Holstein heifer showed a sudden onset of clinical symptoms of head tilt，circling， increased extensor tone of all legs. and decreased level of consciousness. Cerebrocortical necrosis was suspected， and an administration of vitamin B1， corticosteroids，and anti-biotic was performed without a successful response. At necropsy，a neoplastic mass with a diameter of 3.5 cm in the cerebellum，dilated lateral ventricles on both sides and enlargement of the aqueducts cerebra...
Palavras-chave: 牛; 上衣芽腫; 神経症状; Cattle; Ependymoblastoma; Neurological signs.
Ano: 2009
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2807

Serological detection and epidemiology of Neospora caninum and Cryptosporidium parvum antibodies in cattle in southern Egypt
Provedor de dados: 19
Autores: Fereig, Ragab M.; AbouLaila, Mahmoud Rezk; Mohamed, Samy G. A.; Mahmoud, Hassan Y. A. H.; Ali, Alsagher O.; Ali, Asmaa F.; Hilali, Mosaad; Zaid, Anis; Mohamed, Adel Elsayed Ahmed; Nishikawa, Yoshifumi.
Neospora caninum and Cryptosporidium parvum are intracellular protozoan parasites that are distributed worldwide and of major economical concern in cattle industry. N. caninum can cause abortion storms and high culling rates, whereas C. parvum has zoonotic implications and can cause diarrhea in calves. There are currently no data on the prevalence of neosporosis and cryptosporidiosis in humans or animals in southern Egypt. Prevalence of these two infections was determined in a sample of cattle from two different areas in southern Egypt, Sohag and Qena, using enzyme-linked immunosorbent assay. A total 301 cattle were sampled, of which 18.9% were positive for N. caninum, 35.9% were positive for C parvum and 10.0% were positive for both. Geographical location...
Palavras-chave: Cattle; Cryptosporidium parvum; Neospora caninum; ELISA; Egypt.
Ano: 2016
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4531

Epidemiology of bovine hemoprotozoa parasites in cattle and water buffalo in Vietnam
Provedor de dados: 19
Autores: WEERASOORIYA, Gayani; SIVAKUMAR, Thillaiampalam; LAN, Dinh Thi Bich; LONG, Phung Thang; TAKEMAE, Hitoshi; IGARASHI, Ikuo; INOUE, Noboru; YOKOYAMA, Naoaki.
A PCR-based survey of hemoprotozoa parasites detected Babesia bigemina, Theileria orientalis and Trypanosoma theileri among cattle and water buffalo in Vietnam, and a new Babesia sp. closely related to Babesia ovata was detected in cattle only. In addition, Theileria annulata and Trypanosoma evansi were not detected in both cattle and water buffalo. Phylogenetic analysis detected T. orientalis MPSP genotypes 3, 5, 7 and N3 in cattle and 5, 7, N1 and N2 in water buffalo. Additionally, water buffalo-derived T. theileri CATL sequences clustered together with a previously reported cattle-derived sequence from Vietnam. This is the first report of a new Babesia sp. in cattle, and T. orientalis MPSP genotype 7 and T. theileri in water buffalo in Vietnam.
Palavras-chave: Cattle; Epidemiology; Hemoprotozoa; Vietnam; Water buffalo.
Ano: 2016
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4344

Prevalence of Blood Parasites among Cattle at The Central Area of Saudi Arabia
Provedor de dados: 19
Autores: El-Metenawy, T. M.
Palavras-chave: Blood parasites; Theileria annulata; Anaplasma marginale; Cattle; Incidence; Qassim; Saudi Arabia.
Ano: 2000
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/331

A PCR Based Survey of Babesia ovata in Cattle from Various Asian, African and South American Countries
Provedor de dados: 19
Autores: SIVAKUMAR, Thillaiampalam; ASADA, Masahito; BATTSETSEG, Badgar; HUANG, Xiaohong; LAN, Dinh Thi Bich; INPANKAEW, Tawin; P. YBAÑEZ, Adrian; ALHASSAN, Andy; THEKISOE, Oriel M. M.; DE MACEDO, Alan Caine Costa; INOKUMA, Hisashi; IGARASHI, Ikuo; YOKOYAMA, Naoaki; 猪熊, 壽; 五十嵐, 郁男; 横山, 直明.
Babesia ovata is a tick-transmitted hemoprotozoan parasite that infects cattle. In our study, bovine blood samples (n=2,034) were collected from 10 different countries (Brazil, China, Ghana, Japan, Mongolia, the Philippines, South Africa, Sri Lanka, Thailand and Vietnam) and DNA extracted. The DNA samples were screened using an established and specific polymerase chain reaction (PCR) assay targeting the Apical membrane antigen 1 (AMA-1) gene. Parasite DNA was detected among samples collected from Japan, Mongolia and Thailand. Sequence analyses confirmed that the PCR assay detected only B. ovata AMA-1, and that amplicons from different geographical locations were conserved. Our findings highlight the importance of designing adequate strategies to control B....
Palavras-chave: AMA-1; Babesia ovata; Cattle; Mongolia; Thailand.
Ano: 2013
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4016

Loop-mediated isothermal amplification (LAMP) assays for detection of Theileria parva infections targeting the PIM and p150 genes
Provedor de dados: 19
Autores: Thekisoe, Oriel M.M.; Rambritch, Natasha E.; Nakao, Ryo; Bazie, Raoul S.; Mbati, Peter; Namangala, Boniface; Malele, Imna; Skilton, Robert A.; Jongejan, Frans; Sugimoto, Chihiro; Kawazu, Shin-Ichiro; Inoue, Noboru.
We have developed two loop-mediated isothermal amplification (LAMP) assays for the detection of Theileria parva, the causative agent of East Coast fever (ECF), an economically important cattle disease in eastern, central and southern Africa. These assays target the polymorphic immunodominant molecule (PIM) and p150 LAMP genes. The primer set for each gene target consists of six primers, and each set recognises eight distinct regions on the target gene to give highly specific detection of T. parva. The detection limit of each primer set is 1 fg, which is equivalent to one copy of the PIM and p150 T. parva genes. These PIM and p150 LAMP primer sets amplify DNA of T. parva isolates from cattle and buffalo from different countries including Kenya, South...
Palavras-chave: Theileria parva; LAMP; Buffalo; Cattle; Diagnosis.
Ano: 2010
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2672

Genotypic Diversity of Theileria orientalis Detected from Cattle Grazing in Kumamoto and Okinawa Prefectures of Japan
Provedor de dados: 19
Autores: YOKOYAMA, Naoaki; UENO, Akio; MIZUNO, Daisuke; KUBOKI, Noritaka; KHUKHUU, Altangerel; IGARASHI, Ikuo; MIYAHARA, Tokuji; SHIRAISHI, Takashi; KUDO, Ryuta; OSHIRO, Mamoru; ZAKIMI, Satoshi; SUGIMOTO, Chihiro; MATSUMOTO, Kotaro; INOKUMA, Hisashi; 横山, 直明; 五十嵐, 郁男; 松本, 高太郎; 猪熊, 壽.
Theileria orientalis is a benign protozoan species that is widely distributed in Japan, yet sometimes causes serious economic losses in the livestock industry. In this study, we conducted a molecular survey based on genes encoding the major piroplasm surface protein (MPSP) and p23 for T. orientalis detected in cattle grazing in southern areas of Japan, consisting of 2 farms in Kumamoto prefecture (Aso and Kuma districts) and 3 farms in Okinawa prefecture (Ishigaki, Iriomote, and Yonaguni Islands). High prevalence rates of T. orientalis infection were shown in all the cattle populations using the diagnostic MPSP- and p23-PCR assays. Phylogenetic analyses revealed 4 MPSP genotypes and 3 p23 genotypes. Furthermore, MPSP genotype-specific PCR methods were...
Palavras-chave: Cattle; Genotype-specific PCR; Japan; MPSP gene; Theileria orientalis.
Ano: 2011
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3584

Genetic diversity and population structure of Brazilian native bovine breeds
Provedor de dados: 86
Autores: Serrano,Germana Maria; Egito,Andréa Alves do; McManus,Concepta; Mariante,Arthur da Silva.
Conservation and improvement strategies should be based on the association between genetic and phenotypic characteristics. The objective of this work was to characterize five native Brazilian cattle breeds (Caracu, Crioulo Lageano, Curraleiro, National Polled and Pantaneiro) and two commercial breeds (Holstein and Nellore) using RAPD technique to estimate genetic distances and variability between and within breeds. Genetic relationships were investigated using 22 primers which generated 122 polymorphic bands. Analysis of molecular variance indicated that most of the genetic variation lay among individuals within populations. The genetic variabilities between pairs of breeds were statistically significant. The smallest genetic divergence was between Crioulo...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal conservation; Cattle; Genetic characterization; RAPD.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2004000600005

Prostaglandin F2α or estradiol benzoate to induce ovulation in timed artificially inseminated dairy cows
Provedor de dados: 86
Autores: Pfeifer,Luiz Francisco Machado; Siqueira,Luiz Gustavo Bruno; Arashiro,Eduardo Kenji Nunes; Castro,Natália Ávila de; Viana,João Henrique Moreira.
Abstract: The objective of this work was to compare two types of ovulation inducers - estradiol benzoate (EB group) or prostaglandin F2α (PG group) -, in postpartum dairy cows subjected to timed artificial insemination (TAI). Lactating Holstein-Gir crossbred cows (n=118) with 60 to 120 days of milk production were used in this study. All cows were treated with an intravaginal progesterone-releasing device (CIDR) plus 2 mg of estradiol benzoate (EB) on day 0. The CIDR inserts were removed on day 9, and all cows received 500 µg sodium cloprostenol. Twenty-four hours after CIDR removal, cows were randomly assigned into two treatment groups and were given either 1 mg of EB i.m. (EB group) or 500 µg sodium cloprostenol i.m. (PG group). TAI were performed at 52...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artificial insemination; Cattle; Estrus; Synchronization; Withdrawal period.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000600738

JOHNE'S  DISEASE ON U.S. DAIRY OPERATIONS
Provedor de dados: 31
Autores: Ott,   Stephen L.
One objective of the NAHMS Dairy '96 Study was to assess dairy producer awareness of Johne's disease, estimate national and regional  herd-level prevalence of Mycobacterium paratuberculosis infection, estimate  economic losses due to Johne's disease on dairy operations, and describe use of recommended preventive  measures on U.S. dairy operations.  Data were collection from U.S. dairy operations with at least 30 milk cows in 20 states representing 79.4 percent of  U.S. dairy cows via questionnaires administered to dairy managers and blood  samples collected from milk cows by Veterinary Medical Officers and Animal Health Technicians. Sera were tested for antibodies to M. paratuberculosis using a commercially available ELISA. Results showed lack of...
Tipo: Report
Palavras-chave: NAHMS; Dairy; Cattle; Johne's disease; M. paratuberculosis; Economics; Livestock Production/Industries.
Ano: 1997
URL: http://purl.umn.edu/32763

CHALLENGES IN AGRICULTURAL TRADE UNDER CUSTA: HIGHLIGHTS
Provedor de dados: 31
Autores: Koo,   Won W.; Mattson,   Jeremy W.
The report summarizes highlights of papers presented in the conference entitled "Challenges in Agricultural Trade under CUSTA" held in Fargo, North Dakota on October 26-27, 2000.  The main objective of the conference was to analyze emerging issues in agricultural trade between the United States and Canada under the U.S./Canada Free Trade Agreement (CUSTA).  Specific themes include: (1) changes in trade patterns under CUSTA, (2) CUSTA's impact on bilateral agricultural trade,  (3) recent evolution of the U.S. and Canadian marketing systems, (4) major issues for future commercial integration, and (5) trade disputes and negotiations.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural trade; Free trade agreement; Wheat; Barley; Cattle; Beef; Trade disputes; Trade negotiations; International Relations/Trade.
Ano: 2000
URL: http://purl.umn.edu/23552

RELATIONSHIPS BETWEEN MARKET PRICE SIGNALS AND PRODUCTION MANAGEMENT: THE CASE OF FED BEEF
Provedor de dados: 31
Autores: Outlaw,   Joe L.; Anderson,   David P.; Padberg,   Daniel I.
The beef industry in the United States consists of several distinct production levels ranging from the cow-calf producer at the lowest level to the final consumer.  These sectors face varying levels of profitability, degrees of market power, conflicting goals, and price signals.  Environmental regulations involve questions of what costs are involved, who is in a position to pay these costs, and whether market prices are capable of signaling different environmental practices. Understanding the relationships within the beef industry may allow researchers to fine-tune analyses of environmental issues in the beef industry.
Tipo: Journal Article
Palavras-chave: Beef; BMP; Cattle; Pricing; Livestock Production/Industries; Marketing.
Ano: 1997
URL: http://purl.umn.edu/15528

DIGITAL DERMATITIS ON U.S. DAIRY OPERATIONS
Provedor de dados: 31
Autores: Ott,   Stephen L.
The NAHMS Dairy '96 Study was designed to provide both participants and the industry with information on the nation's dairy animal population for education and research.  The USDA's National Agricultural Statistics Service (NASS) collaborated with NAHMS to select a statistically valid sample yielding 2,542 producers.  Included in the study were 20 states that represented 83.1 percent of the U.S. milk cows as of January 1, 1996.  Data on digital dermatitis were collected during the second phase as Federal or state Veterinary Medical Officers (VMO's) or Animal Health Technicians (AHT's) contacted producers from February 20 through May 24, 1996 to complete a questionnaire.   Contact for this paper: Steven Ott
Tipo: Report
Palavras-chave: NAHMS; Dairy; Cattle; Footwarts; Heelwarts; Lameness; Hoof; Digital dermatitis; Livestock Production/Industries.
Ano: 1997
URL: http://purl.umn.edu/32762

DAIRY HEIFER MORBIDITY, MORTALITY, AND HEALTH MANAGEMENT FOCUSING ON PREWEANED HEIFERS
Provedor de dados: 31
Autores: Ott,   Stephen L.
The National Dairy Heifer Evaluation Project ( NDHEP ) was conducted by the National Animal Health Monitoring System (NAHMS ) from April 1991 through July 1992. A total of 921 producers monitored calves on a daily basis from the first through the eighth week of life; results were extrapolated to the U.S. dairy population. Mortality of heifer calves was examined according to region ( west, midwest, northeast, southeast ). Mortality was highest in the western region ( 9.1 percent ) and lowest in the midwestern region ( 5.6 percent ). Calf deaths were highest in the two quarters October-December and January-March ( 8.4 percent each quarter ) and lowest in the quarter April-June ( 5.2 percent ). The overall average of stillborn calves was 1.6 percent. Calving...
Tipo: Report
Palavras-chave: NAHMS; Dairy; Cattle; Monitoring; Epidemiology; Preweaning; Heifer; Production; Diseases; Morbidity; Mortality; Death; Illness; Respiratory; Reproduction; Digestive; Musculoskeletal; Nervous system; Mastitis; Maternity; Injections; Antibiotics; Milk replacer; Livestock Production/Industries.
Ano: 1993
URL: http://purl.umn.edu/32756

Pressures and Preferences Affecting Willingness to Apply Beef Manure on Crops in the Colorado High Plains
Provedor de dados: 31
Autores: Hoag,   Dana L.; Lacy,   Michael G.; Davis,   Jessica.
Little is known about producers' willingness to use manure. Past studies have focused on substitutability for fertilizers. We surveyed crop producers in a cattle-dense region of the Colorado Plains about whether and why they apply manure, focusing on how pressures (like owning cattle) or preferences (pro and con) affect their adoption. Using logistic regression, findings show that pressure and preference (PS/PF) significantly affect adoption. A producer with high PS/PF was 10 times more likely to use manure than one with low PS/PF. Policy and decision makers can use such findings to inform education and policy aimed at increasing the land application of manure.
Tipo: Journal Article
Palavras-chave: Cattle; Economic benefits; Economic costs; Management; Manure application; Crop Production/Industries.
Ano: 2004
URL: http://purl.umn.edu/30915

Optimal Contracting for Cattle Feeding: An Assessment of Climatic Conditions
Provedor de dados: 31
Autores: Rahman,   Shaikh Mahfuzur.
A unique approach using a biophysical growth model from the animal science literature is used to examine optimal contract cattle feeding behavior under alternative climatic conditions. The examination of incentives and outcomes in an unusually comprehensive contract parameter and behavioral space is made possible by combining simulated feedlot and carcass performance of a large set of cattle with public price and weather data.  The model uniquely fits typical risk aversion levels and rationalizes existing contract types. The results show that optimal cattle feeding contract varies with climatic condition, but there is a tendency to replace cost-of-gain contracts with yardage-feed contracts as grid pricing has emerged.
Tipo: Conference Paper or Presentation
Palavras-chave: Cattle; Feeding; Contracts; Climate; Industrial Organization; D80.
Ano: 2010
URL: http://purl.umn.edu/61451

DAIRY '96, PART I: REFERENCE OF 1996 DAIRY MANAGEMENT PRACTICES
Provedor de dados: 31
Autores: Ott,   Stephen L.
The NAHMS Dairy '96 Study was designed to provide both participants and the industry with information on the nation's dairy animal population for education and research.  The USDA's National Agricultural Statistics Service (NASS) collaborated with NAHMS to select a statistically valid sample yielding 2,542 producers.  Included in the study were 20 states that represented 83.1 percent of the U.S. milk cows as of January 1, 1996.  NASS interviewers collected data for Part I via a questionnaire administered on-farm from January 1 through 26, 1996.   Contact for this paper: Steven Ott
Tipo: Report
Palavras-chave: NAHMS; Dairy; Cattle; Milk; Feed; Weaning; Culls; Health; Vaccination; Morbidity; Mortality; Births; Housing; Biosecurity; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/32758

Assessing Competition in the U.S. Beef Packing Industry
Provedor de dados: 31
Autores: Ward,   Clement E.
Tipo: Journal Article
Palavras-chave: Beef; Cattle; Competition; Concentration; Market structure; Meatpacking; Pricing; Agribusiness; Livestock Production/Industries; L13; Q13.
Ano: 2010
URL: http://purl.umn.edu/94758

EFECTO DE LAS PLANTAS TÓXICAS PARA EL GANADO SOBRE LA PRODUCCIÓN PECUARIA EN SONORA
Provedor de dados: 31
Autores: Moreno Medina,   Salomon; Denogean Ballesteros,   Francisco G.; Martin Rivera,   Martha H.; Ibarra Flores,   Fernando A.; Baldenegro Campa,   Arturo.
In almost all types of vegetation there are species that can cause toxicity to livestock that consumes. The poisoning caused problems in many different animals can affect reproduction, weight gain, and even death. These problems are causing economic losses in the livestock industry it is necessary to quantify but very difficult to achieve it. In Sonora, has been diagnosed rangeland of overgrazing, which manifests itself in a deterioration that diminishes the species desirable and undesirable increases, among these plants are toxic. We have identified 184 species that are toxic and within them there are 59 species that consume livestock and cause problems. For the foregoing are raised by this study, in order to try to estimate the economic impact that cause...
Tipo: Journal Article
Palavras-chave: Poisonous plants; Cattle; Economic impact; Sonora.; Agribusiness.
Ano: 2010
URL: http://purl.umn.edu/56554

BEEF '97, PART III: REFERENCE OF 1997 BEEF COW-CALF PRODUCTION MANAGEMENT AND DISEASE CONTROL
Provedor de dados: 31
Autores: Dargatz,   David.
The NAHMS Beef '97 Study was designed to provide both participants and the industry with information on the nation's cow-calf population for education and research.  The USDA's National Agricultural Statistics Service (NASS) collaborated with NAHMS to select a statistically-valid sample yielding 2,713 producers from 23 states.  The 23-state target population represented 85.7 percent of U.S. beef cows on January 1, 1997, and 77.6 percent of U.S. beef operations.  Federal and state Veterinary Medical Officers (VMO's) and Animal Health Technicians (AHT's) collected data for this report on-farm from March 3, 1996, through May 23, 1997, from 1,190 operations that had five or more beef cows on January 1, 1997.   Contact For This Paper: David Dargatz
Tipo: Report
Palavras-chave: NAHMS; Beef; Cattle; Cow-calf; Breeding; SPA; Price impact; Environment; Weaning; Economics; Disease; Johne's; Marketing; Livestock Production/Industries.
Ano: 1998
URL: http://purl.umn.edu/32744

ESTIMATING THE VALUE OF SOURCE VERIFICATION OF FEEDER CATTLE
Provedor de dados: 31
Autores: Lawrence,   John D.; Yeboah,   Godfred.
Source-verified (SV) feeder cattle auctions were held in Bloomfield, Iowa, each October, November, and December from 1997-2000. This study compares price data from these SV auctions to traditional auctions at the same location to determine whether a premium exists for SV feeder cattle. Hedonic pricing models were estimated to evaluate the price effects of lot characteristics, market forces, and type of market (SV versus regular sale). The SV cattle were sorted and pooled into large lots. The larger lot size, consistent with early research, earned large price premiums. After accounting for lot size, the SV premium for lighter cattle (&lt; 650/600-pound steers/heifers) was estimated at $1.30/cwt, and was significant. The SV premium over and above lot size...
Tipo: Journal Article
Palavras-chave: Auction; Cattle; Hedonic pricing model; Markets; Source-verified auction; Livestock Production/Industries.
Ano: 2002
URL: http://purl.umn.edu/14722

Optimal Marketing Strategies for Southeastern Cattle Producers
Provedor de dados: 31
Autores: Pruitt,   J. Ross; Riley,   John Michael.
Tipo: Conference Paper or Presentation
Palavras-chave: Hedging; Cattle; Simulation; Expected Utility; Agribusiness; Farm Management; Livestock Production/Industries; Marketing; Q13.
Ano: 2009
URL: http://purl.umn.edu/98849

O ciclo pecuário no Brasil: uma análise usando a metodologia da dinâmica de sistemas
Provedor de dados: 31
Autores: Braganca,   Raissa Carvalho; Bueno,   Newton Paulo.
The purpose of the paper was to study if the dynamics of the Brazilian cattle stocks can be better explained by systemic endogenous factors or either by exogenous changes on beef demand. The conclusion, as proposed by the theory of the cattle cycle, was that systemic factors related to the adoption of the stabilization program in 1994 were apparently more important in explaining the stagnation of the Brazilian herd since 2000. The main policy implication of this conclusion is that it seems to have a space for stabilizing de dynamics of the system through adequate public policies. The methodology used was system dynamics which allows to trace the critical feedback loops that drive de cattle cycle and to identify possible leverage points in the system,...
Tipo: Journal Article
Palavras-chave: Cattle; System dynamics; Cattle cycle; Commodities; Economic policy; Livestock Production/Industries.
Ano: 2010
URL: http://purl.umn.edu/95069

Risk Management in Smallholder Cattle Farming: A Hypothetical Insurance Approach in Western Kenya
Provedor de dados: 31
Autores: Otieno,   David Jakinda; Oluoch-Kosura,   Willis; Karugia,   Joseph Thuo; Drucker,   Adam G.; Rege,   Edward.
Smallholder cattle farming is an important livelihood strategy in most developing countries like Kenya. However, tropical diseases in Africa often wipe out these valuable assets. This paper focuses on mitigation of cattle disease risks through a hypothetical insurance scheme. The study is based on data from a survey conducted on a purposive sample of 300 smallholder cattle farmers in Kakamega and Siaya districts of Western Kenya. Descriptive measures and a regression model were used in the analysis. Results of the study showed that most farmers (91.3%) were willing to participate in the cattle insurance scheme. Also, the farmers observed that the scheme would enable them to increase their herd sizes and change their breed composition. The farmer's mean...
Tipo: Conference Paper or Presentation
Palavras-chave: Cattle; Smallholder livelihoods; Disease risks; Insurance; Livestock Production/Industries; Risk and Uncertainty.
Ano: 2006
URL: http://purl.umn.edu/25489

Attributes Preferred and Premiums Offered for Naturally Produced Beef Cattle
Provedor de dados: 31
Autores: Springer,   Job D.; Biermacher,   Jon T.; Childs,   M. Dan; Alkire,   Deke O.; Grooms,   Brandon.
A growing number of beef cattle producers in the US are using limited information to determine whether or not it would be economical for them to grow naturally produced cattle.  The objective was to discover the attributes that marketing companies prefer for the naturally produced cattle they purchase, and to elicit the price premiums being offered for cattle that possess these attributes.  Results of a phone survey of companies that purchase natural cattle show that 27 out of 32 companies report their willingness to pay a premium of $5.95/cwt for cattle that have never received antibiotics, ionophores, hormones or animal by-products.
Tipo: Conference Paper or Presentation
Palavras-chave: Key words: attributes; Beef; Cattle; Naturally produced; Premiums; Agribusiness; Food Consumption/Nutrition/Food Safety; Livestock Production/Industries; Marketing.
Ano: 2009
URL: http://purl.umn.edu/46859

Some Estimates of Farmers' Utility Functions
Provedor de dados: 31
Autores: Hildreth,   Clifford; Knowles,   Glenn J.
Utility functions for 13 Minnesota farmers are estimated from their responses to hypothetical decision problems under uncertainty.  The results furnish strong evidence of risk aversion and of decreasing absolute risk aversion as wealth increases.
Tipo: Report
Palavras-chave: Utility; Bayesian; Farmers; Uncertainty; Risk aversion; Decision theory; Cattle; Risk and Uncertainty.
Ano: 1982
URL: http://purl.umn.edu/54545

Concentration in Beef Packing and Slaughter Cattle Pricing
Provedor de dados: 31
Autores: Love,   H. Alan; Capps,   Oral, Jr.; Williams,   Gary W.
We empirically investigate the effects of beef packer concentration and size efficiencies, packer procurement and pricing methods, and other market variables and quality characteristics on the prices paid by packers for slaughter cattle. We find that packers pay less for fed cattle in more concentrated regions. However, we find that concentration is only one of numerous market factors determining fed cattle prices and less important than many. Quality variables controlled by sellers, like cattle type, are more important in determining the price paid by packers than packer concentration, size economies, procurement methods, or other variables outside seller control.
Tipo: Report
Palavras-chave: Cattle Pricing; Beef Packing; Slaughter Cattle; Cattle; Demand and Price Analysis; Livestock Production/Industries.
Ano: 2009
URL: http://purl.umn.edu/90493

Determinants of Market Prices of Cattle in Eastern Ethiopia
Provedor de dados: 31
Autores: Adugna,   Teressa.
This study has attempted to identify determinants of cattle price per kilogram live weight using a log-linear regression model. The estimated model explains about 48% of the variation in market prices of cattle. Price per kilogram live weight of cattle increases with animal characteristics such as age, live weight and grade. Type of sellers, buyers' purposes, festivals, time of transaction and a time trend are also important variables in affecting cattle prices. Farmers tend to sell their animals at price discounts as compared to trader sellers. Cattle sellers suffer from price discounts in selling to buyers with business purposes in comparison to selling to ultimate consumers. Sellers tend to benefit from animal sales during festivals, as they tend to...
Tipo: Conference Paper or Presentation
Palavras-chave: Cattle; Price variation; Live weight; Animal characteristics; Market characteristics; Eastern Ethiopia; Livestock Production/Industries.
Ano: 2006
URL: http://purl.umn.edu/25336

OPTIMAL MARKETING DECISIONS FOR FEEDER CATTLE UNDER PRICE AND PRODUCTION RISK
Provedor de dados: 31
Autores: Wang,   Xuecai; Dorfman,   Jeffrey H.; McKissick,   John C.; Turner,   Steven C.
In many parts of the U.S., beef cattle production is a large sector of the agricultural economy, yet few of the cattle are stockered; instead the production is focused on cow-calf operations only.  Restricting their operation to only the first phase of beef production may be limiting the cattle owners' profit potential.  This paper examines the opportunities for operators to earn additional profit from stockering cattle.  Using a representative risk-averse producer, a decision set with seven possible marketing strategies is elevated for the optimal decision in a Bayesian framework which allows for price and production risk.  We find that in many instances retaining the cattle for stockering is a superior decision when done in conjunction with specific...
Tipo: Journal Article
Palavras-chave: Cattle; Decision science; Estimation risk; Marketing; Livestock Production/Industries; C6; D2; Q1.
Ano: 2001
URL: http://purl.umn.edu/15442

ADOPTION OF BEST MANAGEMENT PRACTICES IN STOCKER CATTLE PRODUCTION
Provedor de dados: 31
Autores: Johnson,   Rachel J.; Doye,   Damona G.; Lalman,   David L.; Peel,   Derrell S.; Raper,   Kellie Curry.
This study identifies current production and management practices of Oklahoma stocker cattle producers and analyzes factors affecting the adoption of best management practices (BMPs) using chi-square analysis. Results reveal that factors influencing the adoption of BMPs are operation size, dependency upon income from the operation, and specialization in stocker production.
Tipo: Conference Paper or Presentation
Palavras-chave: Cattle; Stockers; Management; Production; Livestock Production/Industries.
Ano: 2008
URL: http://purl.umn.edu/6827

Factors Affecting Beef Cow-Herd Costs, Production, and Profits
Provedor de dados: 31
Autores: Ramsey,   Ruslyn; Doye,   Damona G.; Ward,   Clement E.; McGrann,   James M.; Falconer,   Lawrence L.; Bevers,   Stanley J.
Cow-herd standardized performance analysis (SPA) data for Texas, Oklahoma, and New Mexico were used to determine economic factors affecting cow-herd costs, production, and profitability.  Total cost was defined as the financial cost associated with raising a calf through the weaning stage; production, as pounds weaned per exposed female; and profits, as a rate of return on assets.  Variable affecting one of more performance measures included herd size; pounds of feed fed; real estate, machinery, and breeding-stock investments; calving percentage; death loss; and breeding-season length.  Management variables were especially important for financial costs and profitability of the cow-herd operation.
Tipo: Journal Article
Palavras-chave: Beef; Cattle; Costs; Cow-calf; Economics; Production; Profits; Return on assets; Production Economics; Q120.
Ano: 2005
URL: http://purl.umn.edu/43687

An Economic Performance Analysis of the Beef Cow-herd Enterprise Using a Stochastic Frontier Function
Provedor de dados: 31
Autores: Cho,   Jaesung; Park,   Seong Cheol; Bevers,   Stanley J.
Standardized Performance Analysis (SPA) data from Texas, Oklahoma, and New Mexico were used to examine the economic performance of beef cow herd operations in the Southern Plains region by measuring their technical efficiency index. Factors that make significant impacts on the production are herd size, machinery investment per breeding cow, and rainfall. Little technical inefficiency among the Southern beef cattle operations that participated in the SPA data was found.
Tipo: Conference Paper or Presentation
Palavras-chave: Beef; Cattle; Cost; Cow-calf; Production; Stochastic production function.; Farm Management; Livestock Production/Industries; Production Economics.
Ano: 2011
URL: http://purl.umn.edu/98842

Cost and Benefit Analysis of a Preconditioning Feeder Calf Program
Provedor de dados: 31
Autores: Donnell,   Jeri; Ward,   Clement E.
Objectives were twofold: Determine key factors influencing preconditioning cost and returns; and determine the premium for age and source verified, preconditioned calves sold at a public livestock market.  Data provided by the Samuel Roberts Noble Foundation show preconditioning returns depend significantly on number of days preconditioned, average daily gain, and cost of vaccinations, hay, feed, and mineral.  Noble Foundation cooperators received a premium for age and source verified, preconditioned feeder cattle when sold at market.  Significant coefficients averaged across five sales conclude that Noble Foundation management practices receive a $2.49/cwt premium when compared to all other cattle sold at market.
Tipo: Conference Paper or Presentation
Palavras-chave: Cattle; Calves; Preconditioning; Prices; Costs; Age and source verification; Marketing.
Ano: 2008
URL: http://purl.umn.edu/42303

A Limited Information Bayesian Forecasting Model of the Cattle SubSector
Provedor de dados: 31
Autores: Abidoye,   Babatunde O.; Lawrence,   John D.
The first step towards forecasting the price and output of the cattle industry is understanding the dynamics of the livestock production process. This study follows up on the Weimar and Stillman (1990) paper by using data from 1970 to 2005 to estimate the parameters that characterizes the cattle output supply. The model is then used to estimate forecast values for the periods 2006 and 2007. Bayesian limited information likelihood method is used to estimate the parameters when endogeneity exists between these variables. The forecasting ability of the model for a two-step ahead forecast for majority of the variables are relatively good and test statistic of the forecast are reported.
Tipo: Conference Paper or Presentation
Palavras-chave: Cattle; Bayesian; Forecasting; Inventory; Slaughter; Agribusiness; Agricultural Finance; Financial Economics; Livestock Production/Industries; Marketing; Production Economics; Research Methods/ Statistical Methods.
Ano: 2009
URL: http://purl.umn.edu/53051

Impact of Beef Quality on Market Signals Transmitted by Grid Pricing
Provedor de dados: 31
Autores: Johnson,   Heather C.; Ward,   Clement E.
Value-based marketing is shaping cattle production; however, market signals differ dramatically depending on carcass quality.  This study applies a two-stage coefficients of separate determination procedure to four regional fed cattle datasets sorted by grid value and by carcass quality attributes.  Weight is the strongest signal sent when higher valued cattle and better quality cattle are sold on a grid.  Quality characteristics send stronger signals when lower valued cattle and poorer quality cattle are sold on a grid.  Producers of lower quality cattle can potentially gain $52 to $149 per head by improving quality and $113 to $150 per head by adding weight.
Tipo: Journal Article
Palavras-chave: Beef; Cattle; Carcass; Quality; Coefficients of separate determination; Incentives; Market signals; Value-based marketing; Livestock Production/Industries; Marketing; Q11; Q13.
Ano: 2006
URL: http://purl.umn.edu/43750

BEEF, '97, PART IV: CHANGES IN THE U.S. BEEF COW-CALF INDUSTRY, 1993-1997
Provedor de dados: 31
Autores: Dargatz,   David.
Section 1 of this report shows demographic changes of the U.S. beef cow-calf industry from a historical perspective from data provided by the National Agricultural Statistics Service (NASS) and Census of Agriculture.  Results of two NAHMS national studies in Section II complete the overview of change in the U.S. beef cow-calf industry during the 5-year period from 1993 to 1997.  NAHMS, CHAPA Phase I included data collected from 2,539 cow-calf operations in the 48 continental states via telephone during the fall of 1992.  Subsequent data collection was done on operations in 18 states and from producers with five or more beef cows and 50 percent or more of their calf crop born between January 1 and June 30 (spring calving)  The 18 states represented 70...
Tipo: Report
Palavras-chave: NAHMS; Beef; Cattle; Cow-calf; Demographics; Identification; Economics; Marketing; Weaning; Morbidity; Mortality; Nutrition; Livestock Production/Industries.
Ano: 1998
URL: http://purl.umn.edu/32755

Factors Affecting Adoption of Cow-Calf Production Practices in Oklahoma
Provedor de dados: 31
Autores: Ward,   Clement E.; Vestal,   Mallory K.; Doye,   Damona G.; Lalman,   David L.
Most technology adoption research has focused on crops. Primary data were used to determine differences in management practices among two groups of Oklahoma cow-calf producers based on herd size and cattle income dependence. Significant differences were noted between two groups of producers (smaller operations with less dependence on cattle versus larger with more dependence on cattle) in 79% of the management practices examined. Logit models determined factors influencing the probability of adopting 17 recommended practices. Important factors included the firm goal to choose practices that reduce labor, income dependence on cattle, human capital, and size of operation.
Tipo: Journal Article
Palavras-chave: Cattle; Cow-calf; Livestock; Management practices; Technology adoption; Agribusiness; Demand and Price Analysis; Livestock Production/Industries; Productivity Analysis; D21; Q12; Q16.
Ano: 2008
URL: http://purl.umn.edu/47263

CANADIAN EXPORTS OF LIVESTOCK AND MEAT TO THE UNITED STATES
Provedor de dados: 31
Autores: Mattson,   Jeremy W.; Wachenheim,   Cheryl J.; Koo,   Won W.; Petry,   Timothy A.
Canadian exports of beef and live cattle to the United States have increased significantly since the late 1980s.  Hog exports have increased since the mid-1990s.  Major factors affecting exports of beef, pork, cattle, and hogs from Canada to the United States include the exchange rate, increased Canadian production, U.S.-Canada price differentials, and trade liberalization under the Canada - United States Free Trade Agreement (CUSTA) of 1989.  Increased Canadian exports have resulted in small but significant reductions in U.S. domestic prices of beef, pork, and hogs.
Tipo: Working or Discussion Paper
Palavras-chave: Beef; Bilateral trade; Canada - United States Free Trade Agreement; Cattle; Free trade agreement; Pork; Hogs; Prices; Livestock Production/Industries.
Ano: 2001
URL: http://purl.umn.edu/23610

ESTRUCTURA DE COMERCIALIZACIÓN DE BOVINOS DESTINADOS PARA EL ABASTO DE CARNE EN LA REGIÓN DEL PAPALOAPAN, VERACRUZ, MÉXICO
Provedor de dados: 31
Autores: Vilaboa Arroniz,   Julio; Diaz Rivera,   Pablo; Platas Rosado,   Diego Esteban; Juarez Lagunes,   Francisco.
The objectives were to identify the distribution channels, to characterize the Agents involved, as well as its role in marketing of cattle for slaughter in the Papaloapan´s region of Veracruz. Five sources of information were used: Producers, Introducers, Municipal slaughter house, Butcher and Consumers all groups were surveyed. The study was carried at seven municipalities, which are the largest cattle stock in the region (63,6%). Program SAS (2003) was utilized to calculate measures of central tendency, dispersion, frequencies and contingency tables between agents. Producers were the most agest (53 ±13 years old) and more experienced in the activity (24±14 years) group. The Introducers had the highest level of study (8±5 years) and years of service of...
Tipo: Journal Article
Palavras-chave: Cattle; Papaloapan; Marketing; Meat.; Agribusiness.
Ano: 2009
URL: http://purl.umn.edu/53114

IMPORTANCE OF INCOME IN COW-CALF MANAGEMENT AND PRODUCTIVITY
Provedor de dados: 31
Autores: Ott,   Stephen L.
The USDA's National Animal Health Monitoring System (NAHMS) collected data on management practices and cow-calf herds as a source of family income from a representative sample of cow-calf producers from 23 of the leading cow-calf states.  Overall, 2,713 producers with one or more beef cows participated in the NAHMS Beef '97 Study, representing 85.7 percent of the beef cows and 77.6 percent of the beef cow operations in the United States as of January 1997. Producers whose cow-calf herds were the primary source of family income were more productive than those whose herds were a supplemental source of income. Cow-calf herds were the primary source of income for 14 percent of the producers and provided supplemental income for 69 percent of the producers....
Tipo: Report
Palavras-chave: NAHMS; Beef; Cattle; Cow-calf; Epidemiology; Economics; Marketing; Management; Production; Income; Dehorning; Castration; Vaccinations; Breeding; Calving; Semen testing; Livestock Production/Industries.
Ano: 1998
URL: http://purl.umn.edu/32792

Preferential Cattle and Hog Pricing by Packers: Evidence from Mandatory Price Reports
Provedor de dados: 31
Autores: Ward,   Clement E.
Preferential pricing was one of several concerns leading to mandatory price reporting.  Seven years of “new” data from mandatory reports are examined to determine if evidence exists of preferential pricing by packers for fed cattle and slaughter hogs.  Weekly data show some alternative marketing methods track closer to cash market prices than others.  Some differences can be explained, while others are not as clear.  Evidence was found that cash prices lead prices for alternative marketing methods on rising markets but trail them on declining markets.
Tipo: Conference Paper or Presentation
Palavras-chave: Alternative marketing arrangements; Cattle; Hogs; Marketing; Meatpacking procurement; Price discovery; Pricing; Livestock Production/Industries; Marketing.
Ano: 2008
URL: http://purl.umn.edu/37989

ESTIMATED IMPACT OF NON-PRICE COORDINATION OF FED CATTLE PURCHASES ON MEAT PACKER PROCESSING COSTS
Provedor de dados: 31
Autores: Anderson,   John D.; Trapp,   James N.; Fleming,   Ronald A.
Stochastic simulation of daily slaughter level was used in conjunction with an estimated packing plant cost curve to assess potential reductions in processing costs due to improved vertical coordination between feedlots and packing plants.  Results indicate that processing cost reductions of $1 to $5 per head may be possible. Savings result from ensuring a more stable processing volume that is near the plant's cost-minimizing level of production.
Tipo: Journal Article
Palavras-chave: Cattle; Cost curve; Meat packing; Vertical coordination; Industrial Organization; Livestock Production/Industries.
Ano: 2003
URL: http://purl.umn.edu/14668

DAIRY '96, PART III: REFERENCE OF 1996 DAIRY HEALTH AND HEALTH MANAGEMENT
Provedor de dados: 31
Autores: Ott,   Stephen L.
The NAHMS Dairy '96 Study was designed to provide both participants and the industry with information on the nation's dairy animal population for education and research.  The USDA's National Agricultural Statistics Service (NASS) collaborated with NAHMS to select a statistically valid sample yielding 2,542 producers.  Included in the study were 20 states that represented 83.1 percent of the U.S. milk cows as of January 1, 1996.  Veterinary Medical Officers (VMO's) and Animal Health Technicians (AHT's) collected data for Part III from 1,219 operations that had 30 or more milk cows on January 1, 1996, from February 20 through May 24, 1996.   Contact for this paper: Steven Ott
Tipo: Report
Palavras-chave: NAHMS; Dairy; Cattle; Health; Mastitis; Labor; Antibiotics; Biosecurity; Vaccination; Manure management; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/32752

BEEF '97, PART II: REFERENCE OF 1997 BEEF COW-CALF HEALTH AND HEALTH MANAGEMENT PRACTICES
Provedor de dados: 31
Autores: Dargatz,   David.
The NAHMS Beef '97 Study was designed to provide both participants and the industry with information on the nation's cow-calf population for education and research.  The USDA's National Agricultural Statistics Service (NASS) collaborated with NAHMS to select a statistically-valid sample yielding 2,713 producers from 23 states.  The 23-state target population represented 85.7 percent of U.S. beef cows on January 1, 1997, and 77.6 percent of U.S. beef operations.  NASS enumerators collected data for this report via a questionnaire administered on-farm from December 30, 1996, through February 3, 1997. Contact For This Paper: David Dargatz
Tipo: Report
Palavras-chave: NAHMS; Beef; Cattle; Cow-calf; Health; Morbidity; Mortality; Injections; Nutrition; Implants; Livestock Production/Industries.
Ano: 1997
URL: http://purl.umn.edu/32760

DAIRY '96, PART II: CHANGES IN THE U.S. DAIRY INDUSTRY: 1991-1996
Provedor de dados: 31
Autores: Ott,   Stephen L.
The NAHMS Dairy '96 Study was designed to provide both participants and the industry with information on the nation's dairy animal population for education and research.  This report contains demographic changes of the U.S. and world dairy industry from a historical perspective from data provided by the National Agricultural Statistics Service (NASS), Census of Agriculture, and Foreign Agriculture Service.  Results of two NAHMS national studies overview changes in the U.S. dairy industry in the 5-year period of 1991 to 1996.  The 1991 National Dairy Heifer Evaluation Project included herds of 30 or more milk cows and heifer-rearing operations in 28 states representing 83 percent of U.S. milk cows.  NAHMS Dairy '96 described dairy production for operations...
Tipo: Report
Palavras-chave: NAHMS; Dairy; Cattle; Demographics; Breed; Rolling herd average; Milk; Feed; Weaning; Vaccination; Morbidity; Mortality; Housing; Biosecurity; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/32741

FEEDLOT '99, PART I: BASELINE REFERENCE OF FEEDLOT MANAGEMENT PRACTICES, 1999
Provedor de dados: 31
The National Animal Health Monitoring System (NAHMS) is sponsored by the USDA:APHIS: Veterinary Services (VS). The NAHMS Feedlot '99 Study included feedlots of 1000-head or greater capacity from the 12 leading cattle feeding states. Feedlots included in the study represented 84.9 percent of U.S. feedlots of this size and contained 96.1 percent of the U.S. feedlot cattle inventory on feedlots with 1000-head or greater capacity as of January 1, 2000. For the purposes of the study, operations were grouped into two size categories: those with capacities of between 1000 and 7999 head, and those with capacities of 8000 head or more. Beef animals were the main type of cattle placed in feedlots regardless of operation size. Approximately one-half of the placements...
Tipo: Report
Palavras-chave: NAHMS; Cattle; Cow; Calf; Beef cow-calf; Beef; Cow-calf; Feedlot; Steer; Heifer; Auction; Custom feeding; Feed; Lot; Management; Markets; Weaning; Disease; Region; Environment; Ionophore; Coccidiostat; Probiotic; Quality; Quality assurance; Nutrition; Livestock Production/Industries.
Ano: 2000
URL: http://purl.umn.edu/32768

DAIRY HERD MANAGEMENT PRACTICES FOCUSING ON PREWEANED HEIFERS
Provedor de dados: 31
Autores: Ott,   Stephen L.
The National Dairy Heifer Evaluation Project ( NDHEP ) was conducted by the National Animal Health Monitoring System (NAHMS ) from April 1991 through July 1992 with the assistance of 1,811 producers from 28 states. Producers included in the study each had herds of 30 or more milk cows, representing 78 percent of the milk cows in the U.S. The average total of cattle and calves on each operation was 169.4. The main breed on 94.9% of operations was Holstein. Slightly over 46 percent of operations stated reproductive problems as the cause of low milk production of cows culled from the herd. Newborn calves were separated from their mothers before nursing on 28.0 percent of operations and less than 12 hours after birth on 39.6 percent of operations. On 64.0...
Tipo: Report
Palavras-chave: NAHMS; Dairy; Cattle; Monitoring; Epidemiology; Preweaning; Heifer; Production; Morbidity; Mortality; Death loss; Illness; Colostrum; Calving; Dehorning; Vaccination; Scours; Antibiotics; Feed; Milk replacer; Livestock Production/Industries.
Ano: 1994
URL: http://purl.umn.edu/32754

Outlook vs. Futures: Three Decades of Evidence in Hog and Cattle Markets
Provedor de dados: 31
Autores: Colino,   Evelyn V.; Irwin,   Scott H.
The purpose of this paper is to provide a comprehensive evaluation of the accuracy of outlook forecasts relative to futures prices in hog and cattle markets. Published forecasts from four prominent livestock outlook programs are available for analysis. Most of the series begin in the mid- to late-1970s and end in 2006. Root mean squared error (RMSE) comparisons indicate, with one exception, no meaningful differences in forecast accuracy between outlook forecasts and futures prices. The null hypothesis that futures prices encompass outlook forecasts is rejected in 9 of 11 cases for hogs and 7 of 8 cases for cattle, clearly indicating that outlook forecasts provide incremental information not contained in futures prices. The magnitude of decline in RMSE from...
Tipo: Conference Paper or Presentation
Palavras-chave: Cattle; Encompassing; Forecast; Futures price; Hogs; Outlook; RMSE.
Ano: 2007
URL: http://purl.umn.edu/37577

Relationships among Prices across Alternative Marketing Arrangements for Fed Cattle and Hogs
Provedor de dados: 31
Autores: Lee,   Yoonsuk; Ward,   Clement E.; Brorsen,   B. Wade.
Reduced reliance on cash market prices for fed cattle and hogs raise questions about the role of cash prices in price discovery. We use seven years of weekly data from mandatory price reports to determine whether or not cash market prices are cointegrated with other procurement prices and then test for causality among the price series.  Cash prices were cointegrated with all but one procurement price series.  Cash market prices Granger cause all other procurement prices.  Bidirectional causality was found in some but not all cases.  Thus, cash market prices remain of central importance in price discovery for fed cattle and hogs.
Tipo: Conference Paper or Presentation
Palavras-chave: Cattle; Cointegration; Causality; Hogs; Johansen; Marketing; Prices; Stock-Watson; Vector error correction; Livestock Production/Industries; Marketing; Q13(of Q18).
Ano: 2010
URL: http://purl.umn.edu/56282

Increased efficiency of straw utilisation by cattle and buffalo
Provedor de dados: 31
Autores: George,   P.S.
The Australian Centre of International Agricultural Research (ACIAR) has sponsored several research projects with the aim of increasing the efficiency of straw utilisation by cattle and buffaloes in some Australian and Indian situations. These projects involved research on upgrading technology and field testing specific feed formulations to determine their impact on improving livestock production in India. This report contains an economic assessment of three interrelated projects supported by ACIAR over a period of nine years, starting 1983–84. Apart from validating the feasibility of improving the efficiency of strawbased diets through strategic supplements, the projects under review had played a significant role in the commercial introduction of urea...
Tipo: Book
Palavras-chave: Cattle; Buffalo; Straw; Feed; Australia; India; Efficiency; Livestock production; Economic assessment; Urea molasses blocks; Bypass protein feed; Dairy; Milk; Agribusiness; Farm Management; Food Consumption/Nutrition/Food Safety; International Development; Livestock Production/Industries; Production Economics; Research and Development/Tech Change/Emerging Technologies.
Ano: 1998
URL: http://purl.umn.edu/47191

Economic Analysis of Pharmaceutical Technologies in Modern Beef Production
Provedor de dados: 31
Autores: Lawrence,   John D.; Ibarburu,   Maro A.
Cattle production is the largest single agricultural sector in the U.S. with cash receipts of $49.2 billion in 2005. Like the rest of agriculture cattle producers have adopted efficiency and quality improving technology to meet consumer demands for a safe, wholesome, and affordable food supply. This research uses meta analysis to combine over 170 research trials evaluating pharmaceutical technologies in the cow-calf, stocker, and feedlot segments of beef production. These results were used to estimate the farm level economic value of parasite control, growth promotant implants, sub-therapeutic antibiotics, ionophores, and beta agonists for the industry in 2005. The Food and Agriculture Policy Research Institute (FAPRI) model of U.S. agriculture was used to...
Tipo: Conference Paper or Presentation
Palavras-chave: Cattle; Production cost; Growth promotants; Ionophores; Antibiotics; Parasite control; Beta-agonists.
Ano: 2007
URL: http://purl.umn.edu/37560

ECONOMIC OPPORTUNITIES FOR DAIRY COW CULLING MANAGEMENT OPTIONS
Provedor de dados: 31
Autores: Ott,   Stephen L.
Due to a lack of national information about cull dairy cows, the USDA's National Animal Health Monitoring System (NAHMS) Dairy '96 Study investigated culling management practices. Operations included in the study represented 83.1 percent of U.S. milk cows. Most dairy cows were culled for reasons associated with their inability to profitably produce high-quality milk and calves; reasons for culling were not usually related to ill health or systemic disease. Results showed that almost all cull dairy cows in the US are intended for beef slaughter, as only about 4.4 percent were sent to other dairy operations. Nearly 77 percent of cows intended for beef slaughter were sent to markets, auctions, and sale barns, while 22 percent were sent straight to slaughter...
Tipo: Report
Palavras-chave: NAHMS; Dairy; Cattle; Monitoring; Epidemiology; Production; Economics; Culling; Transportation; Milk; Marketing; Disease; Slaughter condemnation; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/45494

Adoption of Technology, Management Practices, and Production Systems by U.S. Beef Cow-Calf Producers
Provedor de dados: 31
Autores: Pruitt,   J. Ross; Gillespie,   Jeffrey M.; Nehring,   Richard F.; Qushim,   Berdikul.
Using USDA’s Agricultural Resource Management Survey data, factors leading to the adoption of technology, management practices, and production systems by U.S. beef cow-calf producers are analyzed. Binary logit regression models are used to determine impacts of vertical integration; region of the U.S.; farm size, diversification, and tenure; and demographics on adoption decisions. Significant differences were found in adoption rates by region of the U.S., degree of vertical integration, and size of operation, suggesting the presence of economies of size and vertical economies of scope. Results also indicate high degrees of complementarity among technologies, management practices, and production systems.
Tipo: Article
Palavras-chave: Cattle; Cow-calf; Management practices; Production systems; Technology adoption; Farm Management; D21; Q12; Q16.
Ano: 2012
URL: http://purl.umn.edu/123778

RESULTADOS ECONÔMICOS DA ATIVIDADE LEITEIRA NA REGIÃO DE LAVRAS (MG) NOS ANOS 2004 E 2005: UM ESTUDO MULTICASOS
Provedor de dados: 31
Autores: Carvalho,   Francisval de Melo; Lopes,   Marcos Aurelio; Cardoso,   Milton Ghedini; Dias,   Alessandra Silva; Lima,   Andre Luis Ribeiro.
Estudou-se a rentabilidade da atividade leiteira de 17 propriedades da região de Lavras/MG e identificaram-se os componentes que exerceram maior influência sobre os custos finais da atividade. Os dados foram coletados mensalmente durante o período de janeiro de 2004 a dezembro de 2005. Considerou-se a margem bruta, a margem líquida e o resultado (lucro ou prejuízo) como indicadores de eficiência econômica. Os itens componentes do custo operacional efetivo que exerceram maior influência sobre os custos da atividade leiteira foram, em ordem decrescente, alimentação (55,9%), mão-de-obra (19,1%), despesas diversas (11,3%), energia (7,1%), sanidade (4,9%), ordenha (0,74%), impostos (0,74%) e inseminação artificial (0,23%). A margem líquida e o resultado...
Tipo: Conference Paper or Presentation
Palavras-chave: Bovinocultura de leite; Análise de rentabilidade; Custo de produção; Ponto de equilíbrio; Cattle; Production cost; Breakeven point; Profitability analysis; Livestock Production/Industries.
Ano: 2008
URL: http://purl.umn.edu/109702

Programa de Extensionismo Agropecuario de la Secretaría de Fomento Agropecuario del Gobierno del Estado de Coahuila
Provedor de dados: 31
Autores: Fernandez Aguirre,   Hector; Perez Mata,   Luz Elena; Godoy Avila,   Salvador; Reyes Lopez,   Alfonso; Valdes Rodriguez,   Victor M.; Prado Delgado,   Alberto; Lagarda Murrieta,   Angel; Castro Medina,   Ruben; Ramirez Contreras,   Carlos Efren.
The Secretaria de Fomento Agropecuario del Estado de Coahuila created at the express request of rural producers, the program of agricultural and rural extension, in order to lead the field a comprehensive system of technical assistance, supported by technology that generate research institutions , and backed by highly trained technicians, committed to sustainable rural development. Among the main objectives of the program in the case of crops, is raising yields and improve their quality, and in the case of livestock, increase productivity and maintain the health of cattle ranches. The extension program, began in 2006 with two specific programs: one in Cotton, in the laguna region, and another in Bovine, in 23 municipalities of the entity; for 2007, are...
Tipo: Journal Article
Palavras-chave: Agricultural and rural extension program; Yields; Productivity; Health; Cattle; Crops; Agribusiness.
Ano: 2009
URL: http://purl.umn.edu/48603

MARKETING PRACTICES IN BEEF COW-CALF OPERATIONS
Provedor de dados: 31
Autores: Ott,   Stephen L.
The National Animal Health Monitoring System (NAHMS) Beef '97 Study collected data on the marketing practices of 2,713 beef cow-calf producers representing 85.7% of all beef cows as of January 1, 1997, in 23 leading cow-calf states. Of the operations included in the study, 67.4% sold steer calves, and 52.1% sold heifer calves for slaughter in the year preceding the study. By number of operations, auction was the most common method of selling steers (84.9% of operations) and private treaty was the second most popular marketing method (10.4% of operations). By number of steers sold, private treaty was the most common marketing method. For operations selling either steer or heifer calves, smaller operations were more likely to use auctions as a marketing...
Tipo: Report
Palavras-chave: NAHMS; Beef; Cattle; Cow-calf; Epidemiology; Economics; Marketing; Management; Weaning; Auctions; Income; Forward pricing; Futures contracts; Livestock Production/Industries.
Ano: 1998
URL: http://purl.umn.edu/32793

The Beneficial Impact of Sorting Heavy Cattle at Re-Implant
Provedor de dados: 31
Autores: Link,   David J.; Almas,   Lal K.; Brown,   Michael S.; Lawrence,   Ty E.
This research examined a simple sorting strategy to reduce the prevalence of heavyweight carcass discounts.  Cattle that were identified and sorted off at re-implant had a reduced prevalence of heavyweight carcasses versus unsorted cattle.  Re-implant sorting was profitable at pen average in-weights of 800 pounds or less.
Tipo: Conference Paper or Presentation
Palavras-chave: Cattle; Fed cattle marketing; Cattle sorting; Formula marketing; Farm Management; Livestock Production/Industries; Marketing; Q11; Q16; M31.
Ano: 2011
URL: http://purl.umn.edu/98732

Constraints to Value-Added Management Practice Adoption for Cow-Calf Producers
Provedor de dados: 31
Autores: Sand,   Shannon R.; Raper,   Kellie Curry; McKinney,   Doug.
Tipo: Conference Paper or Presentation
Palavras-chave: Cattle; Value-Added; Marketing; Livestock; Livestock Production/Industries; Marketing; Q1.
Ano: 2010
URL: http://purl.umn.edu/56524

ESTRUCTURA PRODUCTIVA Y DESEQUILIBRIO EXTERNO EN CARNE DE VACUNO ENTRE MÉXICO Y ESTADOS UNIDOS
Provedor de dados: 31
Autores: Araujo Andrade,   Luis Alberto; Cruz Pacheco,   Eraclio del Jesus.
The problem to investigate is the permanent disequilibrium of Mexican commercial balance of cattle heads and meat regarding United States during the period 1993-2007. The objective is shows that the inequality productive structure on cattle heads and meat that exists between Mexico and American Union, through commercial exchange of those products impact the commercial balance. The methodology used was the consult of international trade and productive aspects of cattle to both countries and the use of structuralism economic theory for the information analysis. The results obtained shows that the inequality structure between both nations (United States as centre and Mexico as periphery) on items such as herd size; integration to meat industry; meat...
Tipo: Journal Article
Palavras-chave: Structure; External Disequilibrium; Centre; Periphery; Cattle; Heard; Meat.; Agribusiness.
Ano: 2010
URL: http://purl.umn.edu/93912

Cattle Accumulation and Land Use Intensification by Households in the Brazilian Amazon
Provedor de dados: 31
Autores: Caviglia-Harris,   Jill L.
In developing countries across the globe the impact of livestock on deforestation levels has been profound. This paper explores the role of the cattle industry in household decision making for small landholders in the Brazilian Amazon. Important inquiries raised in the literature are addressed, including the determinants of the co-evolution of deforestation and cattle herds, the possibility of production specialization, and the role of cattle in household livelihoods. Panel data suggest that households have changed focus from crop  introduction to cattle. Empirical models reveal that location, wealth, and education are among the important determinants of production decisions and cattle accumulation. Policy recommendations include a focus on the cattle...
Tipo: Journal Article
Palavras-chave: Latin America; Brazil; Household production; Land use; Cattle; Deforestation; Land Economics/Use; Livestock Production/Industries.
Ano: 2005
URL: http://purl.umn.edu/10233

Value of Minimum Sire Accuracy Traits in Bred Heifer Price
Provedor de dados: 31
Autores: Rees,   Lisa; Parcell,   Joseph L.; Patterson,   David J.
The product life cycle of the new value added marketing strategy that a quality heifer program created in adding, a new product (heifers with additional value characteristics) is explored.  The new product that will be examined is related to the Show-Me Select Heifer Replacement program.  The Tier II program has essentially created a new product (higher quality bred heifers) by using minimum EPD accuracies for calving ease along with expected calf and carcass performance measurements.  The hedonic study shows that that the Tier II heifers receive a premium compared to traditional Show-Me-Select heifers.  The first year Tier II heifers came on the market in 2008 they received a discount of $24 as compared to regular Show-Me-Select Heifers.  However, the...
Tipo: Conference Paper or Presentation
Palavras-chave: Value Added; Life Cycle; Heifers; Cattle; Hedonic; EPD; Demand and Price Analysis; Farm Management.
Ano: 2011
URL: http://purl.umn.edu/103880

Fed Cattle Forward Contract Volume and Basis Relationship
Provedor de dados: 31
Autores: Abahana,   Zelalem; Diersen,   Matthew A.; Li,   Jing; Klein,   Nicole L.
The poster covers analysis and models of forward contracting during the contracting period.  A conceptual model is presented to explain how contracting patterns relate to industry factors and negotiation power of buyers and sellers.  Time series techniques are used to model basis, weekly volume, and total volume.  Forecasting models are also presented.
Tipo: Conference Paper or Presentation
Palavras-chave: Cattle; Forward contract; Basis; Negotiation; Placements; Agribusiness; Demand and Price Analysis; Livestock Production/Industries.
Ano: 2010
URL: http://purl.umn.edu/61150

BEEF '97, PART I: REFERENCE OF 1997 BEEF COW-CALF MANAGEMENT PRACTICES
Provedor de dados: 31
Autores: Dargatz,   David.
The NAHMS Beef '97 Study was designed to provide both participants and the industry with information on the nation's cow-calf population for education and research.  The USDA's National Agricultural Statistics Service (NASS) collaborated with NAHMS to select a statistically-valid sample yielding 2,713 producers from 23 states.  The 23-state target population represented 85.7 percent of U.S. beef cows on January 1, 1997, and 77.6 percent of U.S. beef operations.  NASS enumerators collected data for this report via a questionnaire administered on-farm from December 30, 1996, through February 3, 1997.  Contact for this paper:  David Dargatz
Tipo: Report
Palavras-chave: NAHMS; Beef; Cattle; Cow-calf; Labor; Identification; Weaning; Marketing; Breeding; Calving; Livestock Production/Industries.
Ano: 1997
URL: http://purl.umn.edu/32742

MANAGEMENT PRACTICES ASSOCIATED WITH HIGH-PRODUCING U.S. DAIRY HERDS
Provedor de dados: 31
Autores: Ott,   Stephen L.
The National Animal Health Monitoring Systems (NAHMS) Dairy +96 Study of dairy herds in 20 states examined herd management practices that varied between high-producing (top 25%) and low-producing (bottom 25%) U.S. dairy herds. Only 100% Holstein herds were included in the study. Within four size categories (30-99 cows, 100-199 cows, 200-499 cows, 500 or more cows) herds were ranked by milk production per cow. High-producing herds were more likely to use Dairy Herd Improvement Association records or an on-farm computer system than low-producing herds. High-producing herds were also more likely to feed a total mixed ration, use forage test results in balancing feed rations, use bovine somatotropin (bST) and/or systematic prostaglandins, and vaccinate against...
Tipo: Report
Palavras-chave: NAHMS; Dairy; Cattle; Monitoring; Epidemiology; Economics; Holsteins; Production; Diseases; Vaccinations; Culling; Feed; Livestock Production/Industries.
Ano: 1997
URL: http://purl.umn.edu/32750

DOWN MARKET EFFECTS IN BEEF COW-CALF HERDS
Provedor de dados: 31
Autores: Ott,   Stephen L.
In 1995 and 1996, prices for weaned calves were at the lowest point for the current cattle market cycle. The National Animal Health Monitoring System (NAHMS) Beef ,97 Study examined the effects of the down market on beef cow-calf herd management practices. Most producers did not alter management practices in response to the down market. Among producers who made changes, costs were cut largely in the area of herd health management. Specific management practices in which costs were cut included decreases in use of vaccinations (7.4% of operations), herd medications (7.7% of operations), individual cow medications (5.0% of operations), and veterinary services (14.1% of operations). Other ways that producers altered management practices in response to the down...
Tipo: Report
Palavras-chave: NAHMS; Beef; Cattle; Cow-calf; Epidemiology; Economics; Marketing; Management; Vaccinations; Medications; Veterinarians; Culling; Livestock Production/Industries.
Ano: 1998
URL: http://purl.umn.edu/32794

LIVESTOCK SECTORS IN THE ECONOMIES OF EASTERN EUROPE AND THE FORMER SOVIET UNION; TRANSITION FROM PLAN TO MARKET AND THE ROAD AHEAD
Provedor de dados: 31
Autores: Bjornlund,   Britta; Cochrane,   Nancy J.; Haley,   Mildred M.; Hoskin,   Roger; Liefert,   Olga; Paarlberg,   Philip L.
This report examines the restructuring of the livestock sectors in five countries: Russia, Ukraine, Poland, Hungary, and Romania. All five countries experienced a decline in both animal inventories and meat output during the early years of transition away from a centrally planned economy. ERS, in cooperation with Purdue University, developed five general equilibrium models depicting the economies of each nation. The models were used to evaluate capital investment at different stages of production; the rise in land prices that would result from a better functioning land market; reduced marketing costs; increased availability of credit; and, the creation of off-farm employment to draw labor out of agriculture. The study identifies potential trade and...
Tipo: Report
Palavras-chave: Livestock sector; Eastern Europe; Centrally planned economy; Cattle; Dairy; Beef; Pork; Poultry; Hogs; Property rights; Trade; Investment; Reform; Livestock Production/Industries.
Ano: 2002
URL: http://purl.umn.edu/33977

Economics of Increased Beef Grader Accuracy
Provedor de dados: 31
Autores: Ibarburu,   Maro A.; Lawrence,   John D.; Busby,   Darrell.
Carcass data from more than 38,000 cattle was used to compare the called and measured yield grade in two different periods: before and after the slaughter plant incorporated another grader in the line to improve grading accuracy. The study shows that the graders accuracy significantly increased. The higher accuracy affected all yield grades, but most notably resulted in more called yield grade 4 and 5 carcasses. This analysis will develop insight of what will be the effect of instrument grading that will be more accurate than previously called grades.The results are expressed as the conditional distribution of the called yield grade for a given value of the measured yield grade. The pricing grid currently used by the industry was used to analyze the effect...
Tipo: Conference Paper or Presentation
Palavras-chave: Cattle; Carcass grading; Accuracy; Economics of grading.
Ano: 2007
URL: http://purl.umn.edu/37558

Management Production Systems and Timing Strategies for Cull Cows
Provedor de dados: 31
Autores: Amadou,   Zakou; Ward,   Clement E.; Raper,   Kellie Curry; Cook,   Billy; Biermacher,   Jon T.
Replaced with revised version of paper 06/04/09.
Tipo: Conference Paper or Presentation
Palavras-chave: Cattle; Cull cows; Management; Marketing; Production systems; Timing; Farm Management; Marketing.
Ano: 2009
URL: http://purl.umn.edu/46593

The Value of USDA Situation and Outlook Information in Hog and Cattle Markets
Provedor de dados: 31
Autores: Good,   Darrel L.; Irwin,   Scott H.; Isengildina,   Olga.
This study investigates the impact of six major USDA reports in hog and cattle markets: Cattle; Cattle on Feed; Cold Storage; Hogs and Pigs; Livestock, Dairy, and Poultry Outlook (LDPO); and World Agricultural Supply and Demand Estimates (WASDE). A TARCH-in-mean model, with dummy variables to measure the impact of USDA reports and other external factors, is used to model close-to-open live-lean hog and live cattle futures returns from January 1985 through December 2004. The analysis revealed a statistically significant impact of all but Cattle and Cold Storage reports in live/lean hog futures, and all but Cold Storage reports in live cattle futures. Hogs and Pigs reports had the highest impact on live/lean hog returns by increasing conditional standard...
Tipo: Journal Article
Palavras-chave: Cattle; Event study; Hogs; Livestock; Public information; TARCH model; USDA reports; Livestock Production/Industries; Marketing.
Ano: 2006
URL: http://purl.umn.edu/8614

Environmental impacts and nutrient recycling on pastures grazed by cattle
Provedor de dados: 96
Autores: Vendramini,J.M.B.; Silveira,M.L.A.; Dubeux Jr.,J.C.B.; Sollenberger,L.E.
Grasslands are being replaced by urbanization and more profitable agricultural activities around the world. Producers may be faced with land constraints and need to consider intensification of the remaining grasslands as a means of maintaining overall production on a decreasing land resource. However, intensification of the grazing system is usually associated with greater nutrient inputs, including those from commercial fertilizers and supplement fed to animals. Excessive loading of nutrients in intensive grazing systems via fertilizer and animal wastes can cause nutrient buildup in the soil and subsequent water quality problems. Surface runoff and leaching of nutrients are the two major process affecting water quality. Nitrogen and P represent major...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Forage; Grassland; Nutrient cycling; Water quality.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982007001000015

Effects of addition of fluorine in diets differing in protein content on urinary fluoride excretion, clinical chemistry and thyroid hormones in calves
Provedor de dados: 96
Autores: Lohakare,Jayant; Pattanaik,Ashok Kumar.
In order to compare the effects of addition of fluorine (F) in diets differing in protein content on the urinary F excretion, blood profile and thyroid hormones, 30 crossbred calves (6-8 months) initially exposed to different protein levels were allotted into six groups in a 3 × 2 factorial design. The factors included three different levels of protein: normal (NP; 100%), low (LP; 75%), and high (HP; 125%) besides two levels of supplemental fluorine (as sodium fluoride) at 0 or 200 mg/kg diet. The animals were fed a wheat straw-based diet for 210 d. Feeding NP diets decreased urinary fluoride excretion, measured at 42 d intervals, compared with LP diets. Blood levels of hemoglobin and haematocrit, measured at 70 d intervals, were not affected by either...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Blood; Cattle; Concentrate; Fluorosis; Sodium fluoride; Urine.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013001000009

Lipid and selenium sources on fatty acid composition of intramuscular fat and muscle selenium concentration of Nellore steers
Provedor de dados: 96
Autores: Pereira,Angélica Simone Cravo; Santos,Marcos Veiga dos; Aferri,Gabriela; Corte,Rosana Ruegger Pereira da Silva; Silva,Saulo da Luz e; Freitas Júnior,José Esler de; Leme,Paulo Roberto; Rennó,Francisco Palma.
The objective of this study was to evaluate the effect of lipid and selenium sources in diets for finishing Nellore steers on the fatty acid composition and selenium concentration of the longissimus muscle. Fifty Nellore steers (body weight = 458±39 kg) were assigned to one of six dietary treatments: 1) diet containing sunflower seed and inorganic selenium; 2) sunflower seed and organic selenium; 3) whole cottonseed and inorganic selenium; 4) whole cottonseed and organic selenium; 5) soybeans and inorganic selenium; and 6) soybeans and organic selenium. Diets were formulated with the same amount of nitrogen and calories and supplied once daily to steers in collective pens, with three animals per pen, for 120 d. At the end of the trial, steers were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant; Cattle; Longissimus; Soybean seed; Sunflower seed; Whole cottonseed.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012001100009

Estimation of endogenous contribution and urinary excretion of purine derivatives from the total digestible nutrient intake in Nellore heifers
Provedor de dados: 96
Autores: Braga,Jercyane Maria da Silva; Valadares,Rilene Ferreira Diniz; Pellizzoni,Samantha Gusmão; Valadares Filho,Sebastião de Campos; Prates,Luciana Louzada; Costa e Silva,Luiz Fernando.
The objectives of this experiment were to estimate the endogenous excretion of purine derivatives (PD), the intake and digestibility of nutrients, the urinary excretion of PD from the intake of total digestible nutrients (TDN) and digestible organic matter (DOM) in Nellore heifers. Eight heifers, 267±17 kg body weight (BW), were assigned to two 4 × 4 latin squares. The planned treatments were four dry matter intake (DMI) levels: 10, 14, 18 and 22 g/kg BW. The diet contained 70% corn silage and 30% concentrate. The endogenous losses were obtained by regression between excretion of PD (mmol/BW0.75) and DMI (g/BW0.75). When PD excretion (mmol/d) was related to the intake of DOM and TDN (kg/d), the following equations were obtained: ŶPD= 32.98 + 21.94*DOM and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Endogenous excretion; Microbial protein.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000800014

Physiological adaptations of ruminants and their potential relevance for production systems
Provedor de dados: 96
Autores: Clauss,Marcus; Hummel,Jürgen.
ABSTRACT Herbivores face the dilemma that the level of feed intake is negatively related to factors that determine digestive efficiency, such as thoroughness of ingesta comminution by chewing, and retention of digesta in the digestive tract. Ruminants have evolved particular adaptations to solve this dilemma. Most ruminants share the characteristic of “digesta washing”: fluid moves through their digestive tract faster than particles, thus effectively washing very fine particles, such as bacteria, out of the digesta plug. As the forestomach is followed by auto-enzymatic digestion, this allows a continuous, increased harvest of microbes from the forestomach. True rumination only evolved twice, in the camelids and the true ruminants. These both evolved a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Digesta washing; Foregut fermenter; Microbial harvest; Microbiome.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000700606

Effects of antibiotic growth promoters mixed with mineral supplement on growth performance, ingestive behavior, and mineral intake of grazing bulls
Provedor de dados: 96
Autores: Vedovatto,Marcelo; Diogo,José Mauro da Silva; Beltrame,João Artêmio Marin; D'Oliveira,Marcella Cândia; Silva,Cássio José da; Mendes,Clayton Quirino; Cabral Filho,Sergio Lucio Salomon; Franco,Gumercindo Loriano.
ABSTRACT The objective was to evaluate the addition of antibiotic growth promoters to free-choice mineral supplement on ingestive behavior, mineral intake, and growth performance of grazing bulls. Sixty Nellore bulls [initial body weight (BW) of 219±17.8 kg and 15±2 months of age] were divided in 12 marandu grass paddocks. The treatments were: mineral supplement (control), mineral supplement + virginiamycin (VIRG), mineral supplement + lasalocid sodium (LASA) and mineral supplement + salinomycin sodium (SALI). Mineral supplements were formulated with target intake of 60 g d−1 and the growth promoters of 75 mg 100 kg−1 of BW. The experimental design was the completely randomized blocks. There was no treatment effect on ingestive behavior or mineral intake;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feed additive; Cattle; Ionophore; Lasalocid; Salinomycin; Virginiamycin.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100706

Copper and selenium supplementation in the diet of Brangus steers on the nutritional characteristics of meat
Provedor de dados: 96
Autores: Netto,Arlindo Saran; Zanetti,Marcus Antonio; Del Claro,Gustavo Ribeiro; Vilela,Flávio Garcia; Melo,Mariza Pires de; Correa,Lísia Bertonha; Pugine,Silvana Marina Piccoli.
Twenty-eight Brangus cattle were used to determine the effect of copper and selenium supplementation on the carcass characteristics, fatty acid composition of the longissimus dorsi muscle and on the copper and selenium concentrations in the liver. The treatments were: no supplementation of copper or selenium; 2 mg Se/kg DM as sodium selenite; 40 mg Cu/kg DM as copper sulfate; and 2 mg Se/kg DM as sodium selenite and 40 mg Cu/kg DM as copper sulfate. The fat thickness, rib eye area and fatty acid composition of the longissimus dorsi muscle were not affected by treatments. There was no effect on carcass yield and cooling loss with the supplementation of copper, selenium or selenium × copper in the levels studied. For the ether extract concentration in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Concentrations; Fatty acids; Minerals.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000100010

Genetic diversity of the Brazilian Creole cattle Pé-duro assessed by microsatellites and mitochondrial DNA
Provedor de dados: 96
Autores: Oliveira,Ana Paula Ferreira de; Carvalho,José Herculano de; Miretti,Marcos Mateo; Lara,Maria Aparecida Cassiano; Contel,Eucleia Primo Betioli.
The objective of this study was to describe the genetic diversity and structure of the largest Pé-duro population by assessing variation at ten autosomal microsatellite (STR) loci and mitochondrial DNA (mtDNA) sequences. The mean expected heterozygosity was 0.755, the mean observed heterozygosity was 0.600 and significant inbreeding coefficient (Fis) and deviations from the Hardy-Weinberg equilibrium in most of analyzed loci demonstrate the impact of inbreeding and homozygosis on this population. A more in-depth genetic analysis could be achieved by expanding the STR list. The analysis of mtDNA provided evidence of ancestral African taurine haplotypes in Pé-duro and excluded maternal Zebuine introgression. In this report, the main Pé-duro population is...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bos taurus; Cattle; Conservation; Genetic diversity; Microsatellites; Mitochondrial DNA.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012001100003

The role of pH on the survival of rumen protozoa in steers
Provedor de dados: 96
Autores: Franzolin,Raul; Dehority,Burk A.
In order to study the effect of pH on defaunation in the rumen, four rumen fistulated steers were fed a basal roughage diet for a 4-week adaptation period followed by 17 weeks of feeding with three diets and two feeding levels of high concentrate diet. Rumen outflow fluid rate was evaluated in both ration levels. Rumen protozoa population was monitored weekly and when animals became defaunated, protozoa were reinoculated with rumen contents from one of the faunated steers. At every two weeks, during all the experimental period, rumen pH was measured in all animals at 0, 4, 8 and 12 h after feeding. It was observed an individual animal influence on the establishment and maintenance of the rumen ciliate protozoa population. In all sampling times, mean rumen...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Ciliate protozoa; Rumen microorganism; Ruminal fauna.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010001000023

Residual feed intake in beef cattle
Provedor de dados: 96
Autores: Arthur,J P.F.; Herd,R.M.
Providing feed is a major input cost in beef production, hence improvements in the efficiency of feed utilisation will reduce the cost of production. Residual feed intake (RFI) is a measure of feed efficiency, and is defined as the difference between an animal's actual feed intake and its expected feed intake based on its size and growth. It is independent of the level of production, and the lower the value the more efficient the animal is. This paper examines the current state of knowledge on RFI. Available information indicates that postweaning RFI is moderately heritable, and that selection for low RFI will result in progeny that consume less feed for the same level of production as progeny of high RFI cattle. Under ad libitum feeding, RFI is...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Feed efficiency; Growth; Residual feed intake.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982008001300031

Growth curve of locally adapted pantaneiro cows raised under natural conditions
Provedor de dados: 96
Autores: Barbosa,Eleonora Araújo; Egito,Andréa Alves do; Abreu,Urbano Gomes Pinto de; Juliano,Raquel Soares; Silva,Joseane Padilha da; Mariante,Arthur da Silva; Ramos,Alexandre Floriani.
The objective of this study was to use morphometric and ultrasound evaluations to estimate the growth curve of the Pantaneiro cattle breed, raised in its natural habitat, aiming at the re-insertion of this breed in production systems. One hundred and three females, aging from months to 11 years, and raised on native pastures, were evaluated. The animals belonged to the Conservation Nucleus of Embrapa Pantanal, located in the Pantanal of Mato Grosso do Sul (Brazil). Weight, thoracic perimeter (TP), body length (BL), rump height (RH), height at withers (HW), hip height (HH), depth (DP), distance between the ilia (DI) (cm) and rib-eye area (REA) were measured. To relate the measurements with the age of the animals, the univariate regression model was used,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal production; Biometric; Cattle; Conservation; Genetic resources; Ultrasound.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013001100002

Application of the first canonical variable in the evaluation of animal production trials
Provedor de dados: 96
Autores: Detmann,Edenio; Cecon,Paulo Roberto; Andreotti,Marcelo de Oliveira; Resende,Flávio Dutra de; Sousa,Daniel de Paula; Ponciano,Niraldo José; Campos,José Maurício de Souza; Souza,Paulo Marcelo de; Vittori,Andrea.
The objective of this work was to evaluate the inter treatment discrimination according to feed conversion efficiency in several animal performance experiments. The variables investigated were: feed conversion ratio (FCR = intake: production ratio), feed efficiency index (FEI = production: intake ratio) and bio-nutritional index (BNI). The BNI was constructed from the first canonical variable obtained based on the multivariate analysis of variance of the intake and animal production (weight gain or milk production) variables. The results indicated that FCR and FEI reciprocated each other at experimental plot level but did not reciprocate at animal group or treatment level. This fact implicates distortions on the descriptive levels of probability of type I...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bio-nutritional index; Cattle; Feed conversion ratio; Feed efficiency index; Multivariate statistical analysis; Poultry.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982005000700030

Prediction of Girolando cattle weight by means of body measurements extracted from images
Provedor de dados: 96
Autores: Weber,Vanessa Aparecida de Moraes; Weber,Fabricio de Lima; Gomes,Rodrigo da Costa; Oliveira Junior,Adair da Silva; Menezes,Geazy Vilharva; Abreu,Urbano Gomes Pinto de; Belete,Nícolas Alessandro de Souza; Pistori,Hemerson.
Abstract The objective with this study was to analyze the body measurements of Girolando cattle, as well as measurements extracted from their images, to generate a model to understand which measures further explain the cattle body weight. Therefore, the experiment physically measured 34 Girolando cattle (two males and 32 females), for the following traits: heart girth (HGP), circumference of the abdomen, body length, occipito-ischial length, wither height, and hip height. In addition, images of the dorsum and the body lateral area of these animals allowed measurements of hip width (HWI), body length, tail distance to the neck, dorsum area (DAI), dorsum perimeter, wither height, hip height, body lateral area, perimeter of the lateral area, and rib height....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Computer vision; Livestock precision; Machine learning; Mass estimation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982020000100800

Effect of high energy intake on carcass composition and hypothalamic gene expression in Bos indicus heifers
Provedor de dados: 96
Autores: Diniz-Magalhães,Juliane; Mesquita,Lígia Garcia; Carvalho,Marina Vieira de; Machado,Anna Beatriz Escarpellin; Pimentel,José Rodrigo Valim; Prada e Silva,Luis Felipe.
ABSTRACT The objective of this study was to evaluate the effect of high or low energy intake on carcass composition and expression of hypothalamic genes related to the onset of puberty. Twenty-four prepubertal Nellore heifers, 18-20- months-old, with 275.3±18.0 kg body weight (BW), and 4.9±0.2 (1-9 scale) body condition score (BCS) were randomly assigned to two treatments: high-energy diet (HE) and low-energy diet (LE). Heifers were housed in two collective pens and fed diets formulated to promote average daily gain of 0.4 (LE) or 1.2 kg (HE) BW/day. Eight heifers from each treatment were slaughtered after the first corpus luteum detection - considered as age of puberty. The 9-10-11th rib section was taken and prepared for carcass composition analyses....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Energy supplementation; Neuropeptides; Puberty; Reproduction.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000800664

Relationship between temperament with performance and meat quality of feedlot steers with predominantly Charolais or Nellore breed
Provedor de dados: 96
Autores: Silveira,Isabella Dias Barbosa; Fischer,Vivian; Farinatti,Luis Henrique Ebling; Restle,João; Alves Filho,Dari Celestino; Menezes,Luís Fernando Glasenapp de.
The relation between temperament with performance and meat quality was determined in 79 Charolais × Nellore steers kept in feedlot. Temperament was evaluated according to exit velocity, scale composite score and flight distance four times in the finishing phase, along with body weight, intake and feed conversion measures. Cattle were classified as calm, intermediate and excited according to exit velocity measures at the beginning of the trial. Excited cattle presented larger values for composite score and flight distance. Irrespective of genotype, excited cattle presented lower average daily gain, dry matter intake and worse feed conversion. Temperament categories did not affect most of beef quality traits, except for calm Bos indicus steers, which...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Intake; Meat characteristics; Temperament; Weight gain.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000600022

Effect of STAT1, OLR1, CSN1S1, CSN1S2 , and DGAT1 genes on milk yield and composition traits of Holstein breed
Provedor de dados: 96
Autores: Ardicli,Sena; Soyudal,Bahadir; Samli,Hale; Dincel,Deniz; Balci,Faruk.
ABSTRACT The objectives of the study were to evaluate allelic frequencies and test the association between STAT1, OLR1, CSN1S1, CSN1S2 , and DGAT1 gene polymorphisms and milk production traits including lactation milk yield, 305 days milk yield, days before peak milk production, and peak milk yield. In addition, samples of milk were analysed for fat, protein, lactose, and total solid contents. A total of 168 purebred Holstein-Fresian cows were genotyped using polymerase chain reaction and restriction fragment length polymorphism methods. Statistical analysis was carried out using least square methods of the general linear model procedure. Significant differences were found between genotypes of the CSN1S2 locus in relation to milk protein content. In...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Dairy cow; Milk composition; Polymorphism.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100411

Evaluation of cation-anion diets in calcium metabolism in ruminants
Provedor de dados: 96
Autores: Oliveira,Ana Alix Mendes de Almeida; Vitti,Dorinha Miriam Silber Schmidt; Oliveira,Simone Raymundo de; Costa,Patrícia Barcellos; Neres,Marcela Abbado; Hermes,Paula Regina; Cavilhão,Cristiani; Konieczniak,Paula.
The objective of this study was to evaluate the use of the dietary cation-anion balance (DCAB) on the calcium metabolism in male Nellore steers with a mean age of 10 months. Three experimental diets were tested: a cationic diet, a diet consisting of Tifton hay only, and an anionic diet with +15.2, +23.9 and −10.0 mEq/100 g DM of DCAB values in the diet. The anionic diet was calculated as the addition of salts of ammonium chloride and magnesium sulfate. Based on the isotope dilution technique, the negative DCAB value used in this study (−10.0 mEq/100 g DM) does not affect calcium metabolism, especially endogenous losses and true absorption.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Feeds; Isotopes; Mineral metabolism.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014001100601

EFFECTIVE MICROORGANISMS (EM) AS BIOFEEDERS FOR ANAEROBIC DIGESTION
Provedor de dados: 107
Autores: Souza Ferreira, Cecília de Fátima; Gates, Richard Stephen; Batista, Maurílio Duarte; TINOCO, Ilda de Fatima Ferreira.
Soil micro-organisms called Effective Microorganisms (EM) were first cultivated and used in the 1970s.  Researches about these cultures have since then demonstrated their effectiveness in improving soil characteristics and as an alternative for accelerating organic matter decomposition in waste treatment systems. The objective of this study was to test whether the addition of EM to substrates incubated in anaerobic digesters would increase the efficiency of waste treatment and biogas production. EM cultures were obtained from bacterial colonies captured within the A-horizon of a Brazilian forest soil. They were left to grow during 15 days on cooked rice contact with the soil; afterwards, the established colonies were separated according to their colors,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Construções Rurais e Ambiência animal production; Biogas; Cattle; Digesters; Waste management.
Ano: 2017
URL: http://www.seer.ufv.br/seer/index.php/reveng/article/view/687

Evaluation of flank strap effects on professional rodeo cattle.
Provedor de dados: 195
Autores: Vasconcelos, Orivaldo Tenório; Alessi, Antônio Carlos; Esper, Cesar Roberto; Franceschin, Paulo Henrique.
Twelve crossbred Zebu bulls that had used the flank strap for four years were studied in order to evaluated the effect of its use on the following aspects: (1) injuries in areas touched by the flank strap as evaluated by histopathology; (2) alterations in spermatogenesis; (3) sexual behavior related to courting and libido; (4) feeding behavior concerning food ingestion and rumination. Material was obtained from six animals: semen collected for andrological examination and skin samples obtained by biopsy. The other six animals were evaluated as to cardiac and respiratory rates before and after jumping, food intake, rumination and sexual behavior while still using the flank strap. Histopathological and andrological did not show any alteration that could be...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Flank strap; Rodeo; Cattle; Spermatogenesis sedém; Rodeio; Bovino; Espermatogênese.
Ano: 2000
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/3370

Neonatology in calves: the importance of colostrum
Provedor de dados: 195
Autores: Guerra, Guilherme Alves; Dorneles, Elaine Maria Seles; Souza, Fernando Nogueira; Cortez, Adriana; Batista, Camila Freitas; Coelho, Sandra Gesteira; Lage, Andrey Pereira; Della Libera, Alice Maria Melville Paiva; Heinemann, Marcos Bryan.
Neonates are able to respond to infectious agents by their innate and acquired immune responses, however, they are slow, produced in small-scale and have low antibody concentrations. Thus, maternal immunity transference is critical to calf initial survival, since it provides antibodies to the neonate bovine, cells of the immune system, as well as other essential elements to its survival, as nutrients, components of the complement system, growth factors, hormones, cytokines, oligosaccharides, gangliosides, reactive oxygen molecules, acute phase proteins, immunomodulatory factors, enzymes, ribonucleases, nucleotides, polyamines, peptides and proteins with antimicrobial activity, antioxidants and trypsin inhibitors. This review presents a discussion of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovines; Cattle; Colostrum; Passive immunity bovinos; Criação de bezerros; Colostro; Imunidade passiva.
Ano: 2017
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/37632

Type 1 bovine herpesvirus (BHV-l): review and current situation in Brazil
Provedor de dados: 195
Autores: Del Fava, Cláudia; Pituco, Edviges Maristela; D' Angelino, José Luiz.
The authors present a review on IBR/lPV, emphasizing the clinical and the epidemiological aspects of the disease and suggesting control measures that can prevent the spread of the virus in bovine herds.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rhinotracheitis; Bovine herpesvirus I; Cattle; Brazil Rinotraqueítis; Herpesvirus vacuno 1; Vacunos; Brasil rinotraqueíte; Herpesvírus bovino I; Bovinos; Brasil.
Ano: 2002
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/3297

Detection of a high prevalence of antibodies against Toxoplasma gondii in cattle in Northern and Midwestern Brazil
Provedor de dados: 101
Autores: Barbosa da Silva,Jenevaldo; Nunes de Santana Castro,Gustavo; Nunes dos Santos,Priscilla; Henrique da Fonseca,Adivaldo; Henrique da Silva Lima,Danillo; dos Anjos Bomjardim,Henrique; dos Santos Belo Reis,Alessandra; de Oliveira Soares,Susiane; Diomedes Barbosa,José.
The aim of this study was to determine the prevalence of Toxoplasma gondii in cattle from the Northern and Midwestern regions of Brazil. Serum samples were collected from 1789 animals and tested by indirect enzyme-linked immunosorbent assay (ELISA). The overall prevalence of T. gondii was 83.40% (1492/1789). The prevalence rates of T. gondii-seropositive animals observed in the states of Pará, Tocantins and, Mato Grosso were 87.45%, 87.79% and 73.06%, respectively. The detection of high prevalence rates of T. gondii in cattle deserves special attention because they are the main source of high biological value protein for humans. This finding indicates the need for further studies on the risk that these animals may pose to public health.
Tipo: Journal article
Palavras-chave: Cattle; ELISA; IFAT; Toxoplasma gondii.
Ano: 2015
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S0253-570X2015000100008

Mathematical models in ruminant nutrition
Provedor de dados: 63
Autores: Tedeschi,Luís Orlindo; Fox,Danny Gene; Sainz,Roberto Daniel; Barioni,Luís Gustavo; Medeiros,Sérgio Raposo de; Boin,Celso.
Mathematical models can be used to improve performance, reduce cost of production, and reduce nutrient excretion by accounting for more of the variation in predicting requirements and feed utilization in each unique production situation. Mathematical models can be classified into five or more categories based on their nature and behavior. Determining the appropriate level of aggregation of equations is a major problem in formulating models. The most critical step is to describe the purpose of the model and then to determine the appropriate mix of empirical and mechanistic representations of physiological functions, given development and evaluation dataset availability, inputs typically available and the benefits versus the risks of use associated with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Feeding; Nutrient; Requirement; Supply.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000100015

Sample size and prediction of weight and yield of individual cuts from Braford steers pistol hindquarters
Provedor de dados: 63
Autores: Cardoso,Leandro Lunardini; Tarouco,Jaime Urdapilleta; MacNeil,Michael D.; Lobato,José Fernando Piva; Dambrós,Mara Célia; Freitas,Aline Kellermann de; Devincenzi,Thais; Feijó,Fernanda Dorneles; Cardoso,Fernando Flores.
ABSTRACT Two hundred seventeen grass-finished Braford steers were assessed by ultrasonic scanning and subsequently harvested with their pistol hindquarters fabricated into boneless wholesale cuts. The Longissimus thoracis muscle area and subcutaneous fat depths were measured. The objectives of this study were: 1) to develop prediction equations for weights of the pistol hindquarter and high-value commercial cuts, and 2) to estimate sample size needed for experiments comparing pistol hindquarter retail product weight using either physically or ultrasonically measured carcass traits. Carcass measurements explained 44 % to 94 % of the variation in weights of individual cuts, whereas, measurements that were made using ultrasound explained 42 % to 90 % of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Carcass; Models; Ultrasound.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162020000400401

Non-conventional P sources for zebu cows in Brazil
Provedor de dados: 63
Autores: Vitti,D.M.S.S.; Abdalla,A.L.; Lopes,H.O.S.; Pereira,E.A.; Meirelles,C.F.
To evaluate non-conventional phosphorus sources, a group of 400 Nellore cows mantained under pasture received a mineral mixture with different P sources (group I: superphosphate - 500 ppm P; group II: superphosphate - 340 ppm P plus rock phosphate Patos 160 ppm P; group III: superphosphate 340 ppm P plus dicalcium phosphate 160 ppm P; group IV - dicalcium phosphate 500 ppm P). There were no differences in pregnancy rate, calving rate and calving interval. A fluorine deposition in bone was observed for the treatments with superphosphate and rock phosphate (66.92 ± 15.53; 69.97 ± 6.5 and 64.05 ± 3.35% respectively for group I, II and III). Superphosphate was almost as good dicalcium phosphate to provide phosphorus for grazing cows and there was a potentially...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phosphorus; Cattle; Rock phosphate; Fluorine.
Ano: 1995
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161995000100014

Probability density function of the number of embryos collected from superovulated Nelore breed donors
Provedor de dados: 63
Autores: Beltrame,Renato Travassos; Barioni,Luis Gustavo; Quirino,Celia Raquel; Dantas,Ozanival Dario.
Several models have been developed to evaluate reproductive status of cows through concentration of progesterone in milk, the effect of sex selection in the commercial production of herds and bioeconomic performance of the multiple ovulation and embryo transfer system in select herds. However, models describing the production of embryos in superovulated females have yet to be developed. A probability density function of the number of embryos collected by donors of the Nelore breed was determined. Records of 61,928 embryo collections from 26,767 donors from 1991 to 2005 were analyzed. Data were provided by the Brazilian Association of Creators of Zebu and Controlmax Consultoria e Sistemas Ltda. The probability density function of the number of viable...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zebu; Cattle; Reproduction; Model.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000400003

Bovine landscape genetics in Brazil
Provedor de dados: 63
Autores: Souza,Ana Clara Barbosa de; Egito,Andréa Alves do; Peripolli,Vanessa; McManus,Concepta Margaret.
ABSTRACT The aim of this study was to explore spatial genetic structure patterns in cattle breeds adapted to local conditions in Brazil. We georeferenced 876 animals of ten breeds raised in Brazil kept in the Genebank of Brazilian Agricultural Research Corporation (Embrapa) by sample locations using the QGIS 2.4.0 software. The Mantel tests, spatial autocorrelation, and Monmonier tests were performed. The distances for spatial correlation tests ranged from 5 to 15 classes. The results indicated genetic discontinuities in cattle breeds from the Midwest, South, and Southeast of the country. Correlation between genetic and geographic distance was low, but significant. The Monmonier Maximum Distance Algorithm indicated an initial subdivision of Curraleiro and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Genetic landscape shape; Georeference; Spatial correlation.
Ano: 2022
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162022000100403

ผลของการเสริม Ethidium bromide หรือ CuSO4 ในปฏิกิริยา Loop-mediated isothermal amplification (LAMP) ต่อการเพิ่มความแม่นยำในการคัดเพศตัวอ่อนโคเนื้อ
Provedor de dados: 106
Autores: Saruttiwong Boonkong; Chainarong Navanukraw; Tossapol Moonmanee; Jiratti Thammasiri; Vilaivan Khanthusaeng; Aree Kraisoon.
The study was conducted to determine effect of EB or CS supplements in LAMP reaction on greater accuracy of sexing cattle embryos. Bovine ovaries were collected from the slaughterhouse, oocytes were aspirated from follicles then were evaluated morphology. Oocytes were cultured in TCM-199 at 38.5 ºC 24 h. For in vitro fertilization (IVF), oocytes were co-incubated with spermatozoa at 38.5 ºC 24 h. Fertilization rate was evaluated and then the embryos were in vitro cultured until morula stage. Then, embryo samples were frozen and stored at -196 ºC. Frozen embryos (n=35) were randomly extracted for total cellular DNA and amplified by PCR method. DNA samples were stored at -20 ºC. Sexing was determined by modification of LAMP method with either 1mM EB or 1M CS...
Tipo: PhysicalObject
Palavras-chave: Cattle; Bovine; Oocyte; LAMP reaction; Loop-mediated isothermal amplificatio; Ethidium bromide; EB; CuSO4; CS; DNA; Sexing embryo; In vitro fertilization; IVF; โคเนื้อ; โอโอไซต์; ลักษณะทางสัณฐานวิทยา; การคัดเพศตัวอ่อน; เทคนิคการคัดเพศ; ดีเอ็นเอ; ความแม่นยำ.
Ano: 2013
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5813

ระบบการเลี้ยงวัวควายของเกษตรกรรายย่อยในอนาคต
Provedor de dados: 106
Autores: Pakapun Skunmun.
Tipo: PhysicalObject
Palavras-chave: Cattle; Buffaloes; Animal production; Smallholder; Integrated farming; Sufficiency economy; Sustainable development; Agricultural extension; Social participation; วัว; โค; ควาย; กระบือ; การผลิตสัตว์; การเลี้ยงสัตว์; เกษตรกรรายย่อย; ระบบเกษตรผสมผสาน; นโยบายการเกษตร; การส่งเสริมการเกษตร.
Ano: 2012
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5770

การศึกษาประสิทธิภาพของการปล่อยแตนเบียนดักแด้แมลงวันในฟาร์มโค
Provedor de dados: 106
Autores: Tipawan Susri; Ubon Tangkawanit; Nutcharee Siri; Siripa Kaewkamsan.
The study was to investigate the efficiency of pupal parasitoid released in cattle farm studied in two farms in Saard district amphoe Nampong, Khon Kaen Province, during October 2011 to September 2012. Pupal parasitoids here released two times in one farm in April 2012. Another farm was not released. Fly populations were evaluated every two weeks from blue sticky trap and direct count on cattle. The percentage of parasitisim was also observed. The results showed that the trend of the decreasing number of fly on the sticky trap and cattle (32.42 and 27.11% respectively) compare with the control farm. Additionally, the percentage of parasitism in released farm was increase 1.25%, while the percentage of parasitism in control farm was changed
Tipo: PhysicalObject
Palavras-chave: Pupal parasitoids; Pteromalidae; Pachycrepoidus vindemiae; Exoristobia philippinensis; Natural enemy; Flies; Parasitism percentage; Cattle; Farmer farm; แตนเบียน; แมลงเบียน; ศัตรูธรรมชาติ; ดักแด้แมลงวัน; การควบคุมแมลงวัน; การควบคุมโดยชีววิธี; เปอร์เซ็นต์การเบียน; โคนม; ฟาร์มเกษตรกร.
Ano: 2013
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5808

การประเมินคุณค่าทางโภชนะและคาร์โบไฮเดรตในรูปน้ำตาลที่ละลายได้ของเศษเหลือจากสับปะรด
Provedor de dados: 106
Autores: Anan Chaokaur; Yaniga Laikhonburi; Chotirod Kunmee; Chawanrat Santhong; Supawadee Chimthong.
The objective of this study was to determine nutritive value and sugar soluble carbohydrate ofpineapple residue. Six treatments were (1) fresh pineapple peel, (2) composted pineapple peel, (3) grind composted pineapple peel, (4) pineapple pulpmeal, (5) pineapple leaf, and (6) pineapple crown. The experiment was conducted in completely randomized design. The results were shown that structural carbohydrate was higher in pineapple peel than pineapple pulp, crown and leaf. Fat content was highest in pineapple leaf. Soluble sugar carbohydrate was higher in pineapple leaf and pulp. In conclusion, pineapple leaf and pulp have potential of being roughage source for dairy and beef cattle.
Tipo: PhysicalObject
Palavras-chave: Pineapple peel; Pineapple residue; Animal feeding; Cattle; Nutritive value; Carbohydrate sugar; สับปะรด; เศษเหลือจากสับปะรด; อาหารสัตว์; อาหารหยาบ; โคนม; โคเนื้อ; คุณค่าอาหารสัตว์; การวิเคราะห์องค์ประกอบทางเคมี; ปริมาณคาร์โบไฮเดรต; ค่าน้ำตาล; ค่าไขมัน.
Ano: 2014
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5749

Boneless yield of carcass of feedlot-finished young Bos indicus L. bulls
Provedor de dados: 109
Autores: Dirceu-Pazdiora,Raul; Resende,Flávio Dutra-de; Faria,Marcelo Henrique de; Rezende-Siqueira,Gustavo; Linhares-Sampaio,Ricardo; Souza-Almeida,Geraldo Benedito de; Caetano-Nunes-Pazdiora,Bruna Rafaela.
Abstract The aim of this study was to evaluate the boneless yield of the carcass of 64 feedlot-finished young Nellore bulls fed diets containing coated or uncoated urea and slaughtered at five body weights (350, 455, 485, 555, and 580 kg). A completely randomized design with a 5 χ 2 factorial arrangement was used. No significant effect was detected for the interaction between slaughter weight and diet; therefore, the variables were analyzed separately, compared by polynomial contrasts and the F test, respectively. The absolute weights of the primal cuts from the fore- and hind-quarter increased linearly as the slaughter weight of the animals increased. Increasing slaughter weights elevated the percentage of rump cap in the pistola hindquarter as well as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal products; Cattle; Meat; Prime cuts; Nellore breed; Diet; Minimum weight; Optigen®.
Ano: 2018
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122018000200339

Substituição do milho pelo resíduo de fecularia de mandioca sobre o desempenho, digestibilidade e características de carcaça de novilhos confinados - DOI: 10.4025/actascianimsci.v31i4.6093
Provedor de dados: 2
Autores: Dian, Paulo Henrique Moura; UNICASTELO; Prado, Ivanor Nunes do; UEM; Fugita, Carlos Alberto; UEM; Prado, Rodolpho Martin do; UNICASTELO; Valero, Maribel Velandia; UNICASTELO; Bertipaglia, Liandra Maria Abaker; UNICASTELO.
O efeito de substituição do milho pelo resíduo desidratado de fecularia de mandioca (0; 12,5; 22,8 e 32,7%) foi avaliado sobre o desempenho, a digestibilidade e características de carcaça e 32 bovinos mestiços (½ Nelore x ½ Angus) de aproximadamente 18 meses de idade e 380 kg de peso vivo. O delineamento experimental foi o inteiramente casualizado, com quatro tratamentos e oito repetições. Foram analisados o ganho médio diário (GMD), rendimento de carcaça (RC), espessura de gordura de cobertura (EGC), área de olho de lombo (AOL), comprimento de perna (CP), espessura de coxão (EC), ingestão de matéria seca (IMS), conversão alimentar (CA), digestibilidade total aparente da matéria seca (DAMS), matéria orgânica (DAMO), proteína bruta (DAPB), energia bruta...
Tipo: Pesquisa de campo ; análise laboratorial
Palavras-chave: Coproduto; Bovinos; Desempenho; Qualidade de carcaça Avaliação de Alimentos para Animais co-product; Cattle; Performance; Carcass quality.
Ano: 2009
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/6093

Correlation between performance and ingestive behavior of steers post-weaned on pastures
Provedor de dados: 2
Autores: Dias, Daniel Lucas Santos; Universidade Estadual do Sudoeste da Bahia; Silva, Robério Rodrigues; Universidade Estadual do Sudoeste da Bahia; Silva, Fabiano Fereira da; Universidade Estadual do Sudoeste da Bahia; Carvalho, Gleidson Giordano Pinto de; Universidade Federal da Bahia; Barroso, Daniele Soares; Universidade Estadual do Sudoeste da Bahia; Carvalho, Venicio Macedo; Universidade Estadual do Sudoeste da Bahia.
The objective of this study was to evaluate the correlations existing between nutrient intake and ingestive behavior of crossbred steers in the post-weaning phase on Brachiaria brizantha cv. Marandu, during the rainy period. Twenty-two steers were distributed into a completely randomized design, with two types of supplement and eleven replications, managed under rotational grazing, in a 6.5 ha area. Pearson’s Linear Correlation analysis was performed between the behavior variables and the performance variables values. The correlation coefficients were tested by the t test. The average daily gain (ADG) showed positive correlation with the times spent ruminating and eating at the trough and total chewing time. Positive correlation was observed between the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.04.05.00-4 bite; Cattle; Gain; Grazing.
Ano: 2014
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/21501

Glycerin levels in the diets for crossbred bulls finished in Feed-lot: ingestive behavior, Feeding and rumination Efficiency doi:10.4025/actascianimsci.v35i4.19090
Provedor de dados: 2
Autores: Eiras, Carlos Emanuel; Universidade Estadual de Maringá; Marques, Jair de Araújo; Universidade Estadual de Maringá; Torrecilhas, Juliana Akamine; Universidade Estadual de Maringá; Zawadzki, Fernando; Universidade Estadual de Maringá; Moletta, José Luis; Instituto Agronômico do Paraná; Prado, Ivanor Nunes do; Universidade Estadual de Maringá.
This work was carried out to study corn substituting by glycerin levels on animal behavior, feeding and rumination efficiency of Purunã young bulls finished in feed-lot. It was utilized 40 bulls Purunã breed with 208.8 ± 33.75 kg and 8 months old. The diets were: without glycerin - G00, 6% of glycerin – G06, 12% of glycerin – G12 and 18% of glycerin – G18. Dry matter intake was similar among diets. On the other hand, NDF intake decreased linearly with glycerin levels supplementation in the diets. FEDM and FENDF were similar among diets. REDM and RENDF were not changed due glycerin levels. Glycerin changed activities durations of bulls. Glycerin did not affect feed frequency. At contrary, rumination frequency was reduced linearly with glycerin inclusion....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Produção animal Comportamento; Bovinos; Consumo; Confinamento; Glicerol behavior; Cattle; Feed intake; Feed-lot; Glycerol.
Ano: 2013
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/19090

Hygiene of environmental surfaces in a cattle barn
Provedor de dados: 111
Autores: Kymäläinen, Hanna-Riitta; Kuisma, Risto.
Microbiological dipslides are widely used e.g. in food production facilities for HACCP (hazard analysis &amp; critical control points) measurements and hygiene monitoring surveys, as well as for other cleanability studies.  In this study the suitability of microbiological dipslide methods to measure the hygiene level of the environmental surfaces in a cattle barn was tested.  A total of 1112 measurements were carried out during five measurement days.  When evaluating the rooms by combining the results of the individual sampling sites and different dipslide types (total microbes, enterobacteria and β-glucuronidase-positive organisms, yeasts and moulds), the corridor and personnel rooms had the highest hygiene status.  The office and personnel kitchen and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Barn; Environment; Surface; Hygiene; Measurement.
Ano: 2014
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2682

Hygiene of environmental surfaces in a cattle barn
Provedor de dados: 111
Autores: Hanna-Riitta Kymäläinen; University of Helsinki, Department of Agricultural Sciences; Risto Kuisma; University of Helsinki, Department of Agricultural Sciences.
Microbiological dipslides are widely used e.g. in food production facilities for HACCP (hazard analysis &amp; critical control points) measurements and hygiene monitoring surveys, as well as for other cleanability studies.  In this study the suitability of microbiological dipslide methods to measure the hygiene level of the environmental surfaces in a cattle barn was tested.  A total of 1112 measurements were carried out during five measurement days.  When evaluating the rooms by combining the results of the individual sampling sites and different dipslide types (total microbes, enterobacteria and β-glucuronidase-positive organisms, yeasts and moulds), the corridor and personnel rooms had the highest hygiene status.  The office and personnel kitchen and...
Palavras-chave: Cattle; Barn; Environment; Surface; Hygiene; Measurement.
Ano: 2014
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2682

Productive performance of Holstein calves finished in feedlot or pasture
Provedor de dados: 42
Autores: DIAS,ANA MARIA O.; MENEZES,LUIS F.G. DE; PARIS,WAGNER; SANTOS,PRISCILA V. DOS; BIESEK,RONALDO R.; MAFIOLETTI,RENAN D.; MARCHESAN,RENATO.
ABSTRACT The use of animals from dairy farms is an alternative to meat production since it provides an increment of total income for farmers. This study aims to evaluate the performance of Holstein calves finished in two feeding systems (feedlot or pasture). Forty-three animals with 58 days old and 57 kg were divided in two treatments: 23 animals finished in feedlot with corn silage plus concentrate based on corn and soybean meal (40:60); 20 animals kept in cultivated pastures according to the period of the year: Italian ryegrass (Lolium multiflorum) and pearl millet (Pennisetum americanum) with supplementation with the same feedlot-concentrate at 1% body weight. Animals were slaughtered with 200 kg. Dry matter and nutrient intake were determined, with the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Forage intake; Chromium oxide; Feeding systems.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000401935

Mineral supplementation stimulates the immune system and antioxidant responses of dairy cows and reduces somatic cell counts in milk
Provedor de dados: 42
Autores: WARKEN,AMANDA C.; LOPES,LEANDRO S.; BOTTARI,NATHIELI B.; GLOMBOWSKY,PATRÍCIA; GALLI,GABRIELA M.; MORSCH,VERA M.; SCHETINGER,MARIA ROSA C.; SILVA,ALEKSANDRO S. DA.
ABSTRACT The aim of this study was to evaluate whether the use of subcutaneous mineral supplementation would affect metabolic parameters, immunological response, milk quality and composition of dairy cows in the postpartum period. Twelve pregnant primiparous Holstein cows, were divided into two groups: six animals supplemented with the mineral complex (magnesium, phosphorus, potassium, selenium and copper), and six animals used as controls. Milk samples were collected every two other weeks postpartum up to sixty days of lactation to analyze composition and quality. Blood samples were collected, and the levels of ketone bodies, total proteins, glucose, albumin, and globulin were measured. The catalase and superoxide enzymes, reactive oxygen species, tumor...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Ketone bodies; Mineral supplementation; Somatic cell count; Health.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000401649

HPLC identification of isoniazid residues in bovine milk
Provedor de dados: 45
Autores: Leite,R.M.H.; Leite,R.C.; Lima,J.A.; Fóscolo,C.B.; Mota,P.M.P.C.; Lobato,F.C.F.; Lage,A.P.
The high pressure liquid chromatography (HPLC) was used for the identification of isoniazid (isonicotinic acid hydrazide) in the milk of cattle treated with a dose of 25 mg/kg/day in alternated days. The effect of milk pasteurization on the isoniazid residue concentration was also studied. The drug excretion presented a cyclic variation, with higher levels in the first day after administration (aa), a mean of 1104.48µg/l, and a decrease two days aa, with a mean of 104.12µg/l. Four days after the last administration of the drug it was not possible to identify residues of isoniazid in the milk of treated animals. Body weight and milk yield influenced the amount of the excreted drug, and pasteurization decreased (mean 47.07%) the concentration of isoniazid...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Tuberculosis; Isoniazid; Milk; HPLC.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352000000600018

Neurological disorder in cattle associated with bovine herpesvirus 4
Provedor de dados: 45
Autores: Costa,E.A.; Vasconcelos,A.C.; Bomfim,M.R.Q.; Amorim,H.B.; Lima,G.B.L.; Coelho,F.M.; Resende,M.
A nested PCR assay was used to diagnose bovine encephalitis through herpesviruses including bovine herpesvirus 5 (BHV-5), bovine herpesvirus 1 (BHV-1), Aujeszky's disease virus (SHV-1), and ovine herpesvirus 2 (OHV-2) in 14 fragments of central nervous system (CNS) from cattle that died with neurological signs. In addition, as some samples of bovine herpesvirus type 4 (BHV-4) have been isolated from neural tissue, it was also tested by nested PCR. The cases of encephalitis occurred in isolation at different times of the year and did not present any seasonality. The duration of the clinical course ranged between 1 to 15 days, and in 64.3% of the cases it manifested between 1 to 2 days. The most frequently observed neurological signs were ataxia, recumbency,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Bovine herpesvirus 4; Central nervous system; Encephalitis.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352011000400006

Energy expenditure due to forage intake and walking of grazing cattle
Provedor de dados: 45
Autores: Di Marco,O.N.; Aello,M.S.
The relative increment in daily maintenance requirement by physical activity was estimated in free-grazing cattle. The effects of forage harvesting and walking were measured and expressed as an index in relation to the value of energy expenditure of animals in corrals. All indices were obtained from experiments conducted in Balcarce (Argentina) from 1993 to 1995. Energy expenditure of Aberdeen Angus steers was estimated by the 14C-entry rate technique, on animals standing still in a corral, grazing at two different biting rates or walking at four different speeds. Information on time spent on grazing and distance traveled was obtained from the literature. These estimations indicate that the maintenance cost of cattle in corrals could be increased on...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Energy; Activity cost; Maintenance requirement; Grazing cost; Walking cost.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352001000100017

Myelography in calves: a comparative study between the contrast agents iopamidol and iohexol
Provedor de dados: 45
Autores: Bueno,G.M.; Girardi,A.M.; Módolo,T.J.C.; Sabes,A.F.; Oliveira,J.A.; Marques,L.C.
ABSTRACT Due to the scarcity of myelogenous studies in cattle, the present study aimed to evaluate the efficacy and distribution of iopamidol and iohexol contrast agents in calves, in order to determine guidelines for obtaining diagnostic radiographs of spinal cord disorders in these animals. Ten healthy Holstein calves, seven days to two months of age, were divided into two groups, according to the contrast medium applied. Myelographic studies of the spine were performed with the calves in lateral recumbency, with radiographs repeated 20 times during a two-hour period. On the radiographs, the contrast medium was analyzed for opacity, detail of the image, distension of the medullary canal, and progression of the contrast line. After seven days, the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Diagnostic imaging; Digital radiography; Spinal cord; Spine.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000401217

Influence of orchiectomy of seven month old bulls on bronchoalveolar immune function
Provedor de dados: 45
Autores: Bertagnon,H.G.; Batista,C.F.; Santos,B.P. dos; Lima,M.G.B.; Bellinazzi,J.B.; Libera,A.M.M.P. Della.
ABSTRACT The present study evaluated the impact that orchiectomy, a routine but painful intervention in bovine husbandry, can cause on pulmonary immunity. To identify whether orchiectomy can impair lung defense, analyses of serum cortisol concentration and of alveolar macrophage and their function (phagocytosis and respiratory burst) were evaluated. Sixteen Holstein bulls (7 mo old, 250±50kg of body weight BW) were divided in two homogeneous groups - the castrated group and the sham group - and the sample were collected on Days -7, 1 and 7 relative to the day of the procedure. Serum cortisol concentration statistically increased on Days 1 and 7 (D-7: 4,97±1,28ng/ml; D1: 6,35 ±1,10ng/ml; D7: 8,28±1,94ng/ml) after castration and these variables seem to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Cortisol; Innate immunity; Phagocytosis.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000200310

Partial hepatectomy in a calf with an omphalocele: case report
Provedor de dados: 45
Autores: Lucas,F.A.; Panelli,E.M.; Nardin Neto,E.; Kandrotas,A.L.; Mastrocinque,S.; Lataro,R.A.; Oliveira,G.G.S.
ABSTRACT An omphalocele is a defect in the closure of the abdominal wall during the embryonic stage, preventing the return of some abdominal organs to the cavity. In stillborn animals, the involvement of the liver in the omphalocele has been reported. The aim of the present study is to report the success of a partial liver resection in a female bovine at two days of age which presented an omphalocele at birth. Surgical intervention was indicated to reduce and suture the abdominal wall. During the surgical procedure, the presence of hard, reddish tissue was noted inside the sac covered by the amniotic membrane, with characteristics consistent with hepatic parenchyma. Due to the impossibility of reducing the contents added to the suggestion of tissue...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Liver resection; Omphalocele.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352016000601581

Peracute bovine mastitis caused by Klebsiella pneumoniae
Provedor de dados: 45
Autores: Ribeiro,M.G.; Motta,R.G.; Paes,A.C.; Allendorf,S.D.; Salerno,T.; Siqueira,A.K.; Fernandes,M.C.; Lara,G.H.B.
Relata-se a ocorrência de graves sintomas de mastite hiperaguda em vaca, causada por Klebsiella pneumoniae, na terceira semana de lactação. Descrevem-se aspectos epidemiológicos, sintomas clínicos, procedimentos de diagnóstico microbiológico, conduta terapêutica e medidas de controle.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Milk; Klebsiella pneumoniae; Endotoxin; Lipopolysaccharide.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000200031

Activation of bovine oocytes by strontium combined or not with an electric pulse
Provedor de dados: 45
Autores: Leal,C.L.V.; Méo,S.C.; Garcia,J.M.
O objetivo deste trabalho foi avaliar as taxas de ativação e de clivagem de oócitos bovinos tratados com estrôncio (10mm de SrCl2), após maturação in vitro por 27-28 horas. No experimento 1, os tratamentos foram: S4 - ativação pelo estrôncio por 4 horas; S12 - ativação pelo estrôncio por 12 horas; S30 - ativação pelo estrôncio por 30 horas; e P - ativação por pulso elétrico (3 pulsos de 1,0kv/cm). No experimento 2 os tratamentos foram: PS4 - ativação combinada pelo pulso elétrico e pelo estrôncio por 4 horas; S4P - ativação pelo estrôncio por 4 horas e pelo pulso elétrico; e PS30 - ativação pelo pulso elétrico e pelo estrôncio por 30 horas. No experimento 1, todos os tratamentos apresentaram taxas similares de ativação (83-90%; P&gt;0,05). Para clivagem, P...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Cattle; Activation; Parthenogenesis; Oocyte; Strontium; Electric pulse.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352003000300020

Dairy cow abortion associated with Neospora caninum and other infectious agents
Provedor de dados: 45
Autores: Santos,A.P.M.E.; Navarro,I.T.; Bracarense,A.P.F.R.L.; Freire,R.L.; Marana,E.R.M.; Ogawa,L.; Alfieri,A.A.; Freitas,J.C.; Vidotto,O.
Trinta e cinco vacas de rebanhos leiteiros da região Norte do estado do Paraná, com histórico de abortamento, foram pesquisadas sorologicamente para verificar a presença de anticorpos contra Neospora caninum, Toxoplasma gondii, Leptospira spp., Brucella abortus, BHV-1 e BVDV. Vinte e uma vacas apresentaram títulos sorológicos compatíveis com infecção. Todas elas, soropositivas para N. caninum, foram também soropositivas para outros agentes infecciosos, sugerindo a possibilidade de associação desses agentes nos problemas reprodutivos de bovinos, no estado do Paraná.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Abortion; Neospora caninum; Reproductive disorder.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352005000400017

Clinical and radiographic changes of carpi, tarsi and interphalangeal joints of beef zebu bulls on semen collection regimen
Provedor de dados: 45
Autores: Motta,G.A.; Girardi,A.M.; Sabes,A.F.; Portugal,E.S.; Nociti,R.P.; Bueno,G.M.; Marques,L.C.
ABSTRACT Osteoarthritis and osteochondrosis are highly correlated to reproductive failure in bulls. This study aimed to evaluate the carpal, tarsal and interphalangeal lesions in beef zebu bulls on semen collection regimen. Twenty-one beef cattle bulls, in a total of forty-one animals, were split into three age-based groups: animals from two to four years old (GI), from more than four to eight years old (GII) and above eight years old (GIII). The clinical findings were conformational changes of limbs, synovial effusion, peripheral venous engorgement of joints and prolonged decubitus. The total population showed moderate clinical manifestation and radiographic score. The GIII presented more severe joint lesions. Carpi and tarsi regions had discrete to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Infertility; Male; Overweight; Radiology.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000601357

Morphological alterations in hemal nodes in splenectomized cattle
Provedor de dados: 45
Autores: Bassan,N.; Vasquez,F.; Vinuesa,M.; Cerrutti,P.; Bernardi,S.
Pelo estudo das alterações morfológicas nos nódulos hemolinfóides, averiguou-se a compensação da deficiência imunológica transitória em bovinos esplenectomizados. Houve aumento acentuado de tamanho dos nódulos hemolinfóides dois meses após a esplenectomia. Além disso, ocorreu aumento significativo na espessura da zona intermediária dos nódulos hemolinfóides, bem como hiperplasia celular porém sem modificação na população e distribuição das células. As células B foram detectadas na zona central dos folículos, enquanto que as CD4+ se assentaram no córtex, na área interfolicular e nos cordões da zona intermediária. As células M2+ estavam dispersas no tecido cordonal e as CD8+ coraram-se de modo similar às células CD4+.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Cattle; Hemal node; Splenectomy; Bovino; Nódulo hemolinfóide; Esplenectomia.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09351999000500009

Molecular identification of Ehrlichia sp. in a beef cattle from brazilian Cerrado - case report
Provedor de dados: 45
Autores: Oliveira,G.; Silveira,A.W.; Sorgatto,S.; Araújo,M.A.; Antunes,T.R.; Silva,P.M.P.; Echeverria,J.T.; Pupin,R.C.; Martins,T.B.; Souza,A.I.; Aguiar,D.M.; Ramos,C.A.N.
ABSTRACT Ehrlichia infections in cattle are frequent in Africa but have also been reported in Brazil and North America. This paper reports natural infection by Ehrlichia sp. associated with Babesia bigemina and Anaplasma marginale in a calf in the municipality of Campo Grande, state of Mato Grosso do Sul, Brazil, presenting polioencephalomalacia. The molecular evidence, based on a fragment of the dsb gene, indicates a species of Ehrlichia genetically related to Ehrlichia canis and other species of the genus found in the tick Rhipicephalus (Boophilus) microplus and a calf from Brazil (99 to 100% identity). It was not possible to associate the clinical signs with Ehrlichia infection due to co-infections and histological evidence of another disease. However,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tick-borne pathogen; Cattle; Ehrlichia; Neurological signs.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000601940

Ammonia poisoning causes muscular but not liver damage in cattle
Provedor de dados: 45
Autores: Antonelli,A.C.; Torres,G.A.S.; Soares,P.C.; Mori,C.S.; Sucupira,M.C.A.; Ortolani,E.L.
Twelve steers were intraruminally administered a high dose (0.5g/kg BW) of urea to study the damage effect of ammonia poisoning on liver and/or muscles. Blood samples were collected to determine ammonia and activities of gammaGT, AST and CK. Eleven steers were successfully poisoned and treated properly, but one succumbed. Poisoned cattle showed high concentration of ammonia, and higher activities of AST and CK. The higher the ammonia, the greater were the activities of AST (r=0.59) and CK (r=0.61). The correlation between AST and CK was high and significant (r=0.80), but not between AST and gammaGT (r=0.19). The activities of AST and CK were higher after the beginning of the convulsive episodes due to ammonia poisoning. Those results showed that occurred...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Ammonia poisoning; Urea; Muscle damage; Liver.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352007000100002

Comparison of two coprological methods for the veterinary diagnosis of fasciolosis
Provedor de dados: 45
Autores: Kleiman,F.; Pietrokovsky,S.; Gil,S.; Wisnivesky-Colli,C.
The sensitivity and utility of a standard faecal sedimentation method (FSM) and a modified stool sieving staining method (FSSM), both currently employed for the diagnosis of Fasciola hepatica infection were compared. Faecal samples were obtained from 51 bovines of an endemic area for fasciolosis in Southwestern Argentina. Each sample was placed in a recipient containing 5% formalin. Eight millilitres of the suspension, equivalent to 2g of faeces, were used for each of the two methods tested. The number of eggs found per sample was recorded. The proportion of positive samples obtained by the FSSM (27/51) was significantly higher than that by the FSM (11/51) (P&lt;0.05). The percent of agreement between methods was 41%. Over a total of 27 positive samples...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Fasciola hepatica; Coprological method; Diagnosis.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352005000200007

TSST-1, enterotoxin and bacteriocin-like substance production by Staphylococcus aureus isolated from foods
Provedor de dados: 45
Autores: Carvalho,S.A.; Carmo,L.S.; Abreu,E.F.; Dias,R.S.; Apolônio,A.C.M.; Santos,S.G.; Farias,L.M.; Carvalho,M.A.R.
The production of Toxic Shock Syndrome Toxin-1 (TSST-1), enterotoxins and bacteriocin-like substances was evaluated in 95 strains of Staphylococcus aureus recovered from raw bovine milk (n=31) and from food samples involved in staphylococcal food poisoning (n=64). Enterotoxigenicity tests with the membrane over agar associated to optimal sensibility plate assays were performed and showed that 96.77% of strains recovered from milk and 95.31% from food samples produced enterotoxins A, B, C, D or TSST-1. Reference strains S. epidermidis, Bacillus cereus, Listeria monocytogenes, Lactobacillus casei, Pseudomonas aeruginosa, S. aureus, Salmonella Typhimurium, Escherichia coli, Enterococcus faecalis and Bacteroides fragilis were used as indicator bacteria in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Mastitis; Toxigenicity; Food poisoning; Bacteriocin.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352013000500035

Lead poisoning in cattle in southern Brazil
Provedor de dados: 45
Autores: Traverso,S.D.; Loretti,A.P.; Donini,M.A.; Driemeier,D.
Em setembro de 2000, três novilhas, provenientes de um pequeno rebanho de bovinos de corte, apresentaram severa depressão, tremores musculares, ato de pressionar a cabeça contra objetos e de ranger de dentes, intensa salivação, cegueira e morte. Envenenamento por chumbo foi diagnosticado com base nos sinais clínicos e em função da presença de grandes concentrações de chumbo nos rins e no fígado de um dos animais afetados. Latas de tinta velhas, presentes no potreiro onde estavam os animais e cujo conteúdo extravasava através de fendas provocadas pela ferrugem, foram identificadas como a fonte de chumbo que causou a toxicose nos animais.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Cattle; Lead poisoning; Environmental pollutant.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352004000300023

Profile and regulation of annexin II expression during early embryogenesis in cattle
Provedor de dados: 45
Autores: Costa,L.F.S.; Machado,M.S.N; Oliveira,J.F.C.; Silva,J.C.; Loguercio,R.S.; Gonçalves,P.B.D.
The presence of annexin II (Ann-II) during the initial stages of bovine embryo development and the regulation of Ann-II expression by retinol and insulin-like growth factor I (IGF-I) were studied. Bovine embryos at different stages of development were produced in vitro on Synthetic Oviductal Fluid (SOF) medium (control group), SOF supplemented with retinol (retinol group; 0.1ng/ml), or IGF-I (IGF-I group; 10ng/ml). The embryos were processed for mRNA extraction, cDNA production and polymerase chain reaction (PCR) using Ann-II-specific oligonucleotides. Ann-II was detected in all stages of early embryo development, except for the 16-cell stage. The blastocyst rates were significantly higher (P&lt;0.05) in the group supplemented with retinol (37.8%, 45/119)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Annexin II; Embryo development.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352007000600023

Induction of the acrosome reaction test to in vitro estimate embryo production in Nelore cattle
Provedor de dados: 45
Autores: Costa,M.Z.; Oliveira,L.Z.; Resende,M.V.; Lucio,A.C.; Perini,A.P.; Miguel,M.C.V.; Lima,V.F.M.H.
The effectiveness of induction of the acrosome reaction (AR) test as a parameter to in vitro estimate embryo production (IVP) in Nelore breed and the AR pattern by the Trypan Blue/Giemsa (TB) stain were evaluated. Frozen semen samples from ten Nelore bulls were submitted to AR induction and were also evaluated for cleavage and blastocyst rates. The treatments utilized for AR induction were: control (TALP medium), TH (TALP medium + 10μg heparin), TL (TALP medium + 100μg lysophosphatidylcholine) and THL (TALP medium + 10μg heparin + 100μg lysophosphatidylcholine). Sperm acrosomal status and viability were evaluated by TB staining at 0 and after 4h incubation at 38°C. The results obtained for AR presented a significant difference (P&lt;0.05) in the percentage...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Fertility; Semen; Acrosome reaction; Fertilization.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352010000400001

Randon amplified polymorphic DNA in the analysis of isolates of Haemonchus (Nematoda-Trichostrongylidae) originated from bovines from different regions
Provedor de dados: 45
Autores: Guimarães,M.P.; Gomes,M.A.; Caldeira,M.C.
Utilizou-se a técnica de DNA polimórfico amplificado ao acaso (RAPD) para a análise de 14 amostras de Haemonchus, um tricostrongilídeo parasito do abomaso de bovinos, originárias de diferentes regiões do estado de Minas Gerais. Os perfis foram obtidos utilizando-se cinco iniciadores diferentes. Não houve correlação entre polimorfismo observado com a origem do animal ou com a espécie de Haemonchus estudada.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; RAPD; Haemonchus; DNA.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352006000100019

Age at weaning and the endocrine response to stress
Provedor de dados: 45
Autores: Bueno,A.R.; Rasby,R.; Clemens,E.T.
Seventy-five Angus x MARC II crossbred heifers were used to assess the effects of age at weaning on calf performance and blood constituents. Calves were weaned at 150, 210, or 270 days of age with comparisons made to their non-weaned counterparts. Changes in blood chemistry and hematology (cortisol, glucose, T3, total proteins, packed cell volume and the differential white blood cell count) were recorded on the day of weaning (day-0), and at 2, 7, 14, and 28 days post-weaning. Calves weaned at 210 days of age presented the highest plasma cortisol, glucose, and total protein concentrations during their early post-weaning period. Calves weaned at 150 days of age had significantly lower plasma T3 values. Packed cell volume and differential white blood cell...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Weaning; Stress; Blood constituents.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352003000100001

Fecundação in vitro com sêmen de bovinos da raça Gir
Provedor de dados: 45
Autores: Ramos,A.A.; Camargo,L.S.A.; Sá,W.F; Ferreira,A.M.; Costa,E.P.
Estudaram-se os efeitos da concentração espermática e do tempo de incubação do sêmen com ovócitos, durante a fecundação in vitro, sobre as taxas de penetração espermática, de fecundação monoespermática e de clivagem, utilizando-se sêmen de touros da raça Gir. Ovócitos (n=817) maturados in vitro foram distribuídos em tratamentos visando à fecundação in vitro (FIV), em um delineamento fatorial 2×2×2, com duas concentrações espermáticas (2 e 4×10(6) espermatozóides/ml), dois períodos de incubação (12 e 18h) e dois touros (A e B). Espermatozóides viáveis foram obtidos pela técnica de swin-up. A FIV foi realizada em meio fert-talp com heparina, em incubadora com 5% de CO2 em ar atmosférico e 95% de umidade, a 39ºC. Após inseminação, 359 ovócitos foram fixados e...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Gir; Fecundação in vitro.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352000000400013

Parotid gland adenocarcinoma in a cow: case report
Provedor de dados: 45
Autores: Queiroz,P.J.B.; Queiroz,T.D.; Magalhães,P.L.; Borges,N.C.; Martins,D.B.; Moura,V.M.B.D.; Silva,L.A.F.
ABSTRACT A 9-year-old Girolando dairy cow, weighing 400kg, with a history of increased volume in the right parotid region, which extended to the submandibular region, was assisted. Fine needle aspiration cytology was performed, and the cytological findings were consistent with malignant neoplasm of epithelial origin (carcinoma). Because of the unfavorable prognosis, the animal was euthanized and submitted to an anatomopathological examination. Samples of the increased parotid and affected lymph nodes were collected for histopathological evaluation. The microscopic changes were accentuated features of anaplasia, moderate cell proliferation, atypical mitotic figures, and necrosis. Stroma ranged from delicate to scirrhous, and the tumor boundaries were not...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Cattle; Cytology; Immunohistochemistry; Malignant neoplasms; Salivary glands.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000300758

Antiviral activity of bovine uterus and placenta induced by Newcastle disease virus
Provedor de dados: 45
Autores: Barreto Filho,J.B.; Marques Júnior,A.P.; Golgher,R.R.; Lopes,E.; Carvalho,P.H.A.; Rossi,R.O.D.S.
The antiviral activity profile of the uterus and fetal membranes from bovine placenta, induced by the Newcastle disease virus (NDV) throughout gestation, was investigated. Explants of the endometrium and caruncles were collected from the uterus, and amniochorion, allantochorion and cotyledons, from fetal placenta. Tissue cultures were induced with ~6.0 hemagglutinating units (HU) of NDV. Supernatants were concentrated 20 fold, filtered in 100kDa cut-off membranes and antiviral activity was titrated in MDBK x VSV system. Tissues of the uterus did not exhibit antiviral activity, while allantochorion and amniochorion produced antiviral factors throughout gestation. Antiviral factors were not related with IFN-alpha, gamma, tau or TNF-alpha. The antiviral...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Interferon; Placenta.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352007000300006

Effects of environmental factors on multiple ovulation of zebu donors
Provedor de dados: 45
Autores: Peixoto,M.G.C.D.; Bergmann,J.A.G.; Fonseca,C.G.; Penna,V.M.; Pereira,C.S.
Data on 1,294 superovulations of Brahman, Gyr, Guzerat and Nellore females were used to evaluate the effects of: breed; herd; year of birth; inbreeding coefficient and age at superovulation of the donor; month, season and year of superovulation; hormone source and dose; and the number of previous treatments on the superovulation results. Four data sets were considered to study the influence of donors’ elimination effect after each consecutive superovulation. Each one contained only records of the first, or of the two firsts, or three firsts or all superovulations. The average number of palpated corpora lutea per superovulation varied from 8.6 to 12.6. The total number of recovered structures and viable embryos ranged from 4.1 to 7.3 and from 7.3 to 13.8,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Zebu; Superovulation; Environmental effects; MOET nucleus.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352006000400019

Molecular approach of the fragile chromosomal region Xq31-34 in cattle (Bos taurus) by microdissection and DOP-PCR
Provedor de dados: 45
Autores: Llambí,S.; Arruga,M.V.
Fragile sites (FS) are chromosomal regions where the normal compactation of chromatine is not observed. FRAXA (Fra Xq27.3, X sexual chromosome) is one of the most studied FS in humans. FRAXA is an expansion of the trinucleotide CGG located in the gene FMR-1. In cattle, sites of chromosomal fragility were reported in BTAX, associated with different pathologies and fertility impairment. Chromosomal microdissection has became a valuable tool for isolating chromatine fragments. In this work, it was combined the chromosomal microdissection technique with DOP-PCR in order to carry out a molecular analysis of the fragile chromosomal region BTAXq31-34. In that region, polymorphic DNA-RAPD sequences (GC rich) are present and sequences of the gene FMR-1 are missing....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Fragile sites; DOP-PCR; Microdissection; X sexual chromosome.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000400023

Chromobacteriosis (Chromobacterium violaceum) in a calf from Brazil - case report
Provedor de dados: 45
Autores: Soares,R.L.; Dias Neto,N.B.; Guizelini,C.C.; Araújo,M.A.; Leal,C.R.B.; Möck,T.B.M.; Ramos,C.A.N.
ABSTRACT Chromobacterium violaceum is a rare opportunistic pathogen that causes highly fatal infections in domestic animals and humans. This report describes a fatal case suggestive of septicemia in a four-day-old female calf with chromobacteriosis. The calf had suppurative omphalophlebitis, suppurative fibrinous polyarthritis, anterior uveitis with bilateral fibrin deposition, fibrinous peritonitis, lymph node abscess and multifocal lymphocytic and neutrophilic encephalitis with multifocal hemorrhages. C. violaceum was isolated from the spleen and peri-renal lymph node and its identity was confirmed by PCR and sequencing. The pathogen was sensitive to azithromycin, gentamicin, enrofloxacin, norfloxacin, marbofloxacin, ciprofloxacin, erythromycin,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: C. violaceum; Cattle; Brazil.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000601929

Condenação de fígados bovinos na região sul do estado do Espírito Santo
Provedor de dados: 45
Autores: Vieira,N.P.; Faria,P.B.; Mattos,M.R.; Pereira,A.A.
This survey was carried out in slaughter plants in the southern of the Espírito Santo State in order to study the causes and the percentages of liver condemnation during post mortem examination from 2008 to 2010. The main reasons for the condemnation of cattle livers in routine meat inspection of the State Inspection Service were fasciolosis (62.2%), telangiectatic (12.2%), bleeding (5.9%), abscess (5.2%), cysticercosis (4.0%), adherence (3.7%), infection (1.9%) and tuberculosis (1.1%). The hepatic fascioliasis was responsible for most of the lover condemnations, constituting a major challenge to livestock health in the south of the Espírito Santo.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Slaughterhouse; Inspection; Fasciolosis.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352011000600047

Standardized method to obtain dermo-epidermal junction samples from bovine hoof
Provedor de dados: 45
Autores: Mendes,H.M.F.; Faleiros,R.R.
As afecções podais em bovinos causam importante impacto econômico negativo na bovinocultura. Pesquisas têm sido realizadas com o objetivo de avançar no entendimento dos processos ocorridos na junção derme-epiderme do casco de bovinos com laminite e nos demais tecidos moles durante as lesões infecciosas. Apesar disso, não foram encontrados na literatura consultada estudos que descrevessem um método padronizado para a obtenção de amostras do tecido laminar do casco. Nesse contexto, foi necessário criar e estabelecer um método viável para a colheita de amostras da junção derme-epiderme, de modo a viabilizar o estudo de pós-graduação que originou esta comunicação. O objetivo é relatar um método padronizado, testado e bem-sucedido para obtenção de amostras da...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Cattle; Claw; Laminar tissue; Dermo-epidermal junction; Podiatry.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352015000200627

Integrity of the plasma membrane, the acrosomal membrane, and the mitochondrial membrane potential of sperm in Nelore bulls from puberty to sexual maturity
Provedor de dados: 45
Autores: Reis,L.S.L.S.; Ramos,A.A.; Camargos,A.S.; Oba,E.
ABSTRACT This study evaluated the plasma membrane integrity, acrosomal membrane integrity, and mitochondrial membrane potential of Nelore bull sperm from early puberty to early sexual maturity and their associations with sperm motility and vigor, the mass motility of the spermatozoa (wave motion), scrotal circumference, and testosterone. Sixty Nelore bulls aged 18 to 19 months were divided into four lots (n=15 bulls/lot) and evaluated over 280 days. Semen samples, collected every 56 days by electroejaculation, were evaluated soon after collection for motility, vigor and wave motion under an optical microscope. Sperm membrane integrity, acrosomal integrity, and mitochondrial activity were evaluated under a fluorescent microscope using probe association...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sexual development; Sperm motility; Sperm vigor; Testosterone; Cattle.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352016000300620

Culture medium composition affects the gene expression pattern and in vitro development potential of bovine somatic cell nuclear transfer (SCNT) embryos
Provedor de dados: 48
Autores: Arias,María E; Ross,Pablo J; Felmer,Ricardo N.
Different culture systems have been studied that support development of somatic cell nuclear transfer (SCNT) embryos up to the blastocyst stage. However, the use of sequential and two-step culture systems has been less studied. The objective of the present study was to examine the developmental potential and quality of bovine SCNT embryos cultured in different two-step culture media based on KSOM, SOF and the macromolecules FBS and BSA (K-K/FBS, K-S/BSA and K-K/BSA, respectively). No differences were observed in the cleavage rate for any of the culture systems. However, there was a significant difference (P&lt;0.01) in the rate of blastocyst development, with the K-K/ FBS culture system yielding a higher rate of blastocysts (28%) compared to other...
Tipo: Journal article
Palavras-chave: Cattle; Gene expression; KSOM; Nuclear transfer embryos; SOF.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602013000400016

Microclimate and soil moisture in a silvopastoral system in southeastern Brazil
Provedor de dados: 53
Autores: Pezzopane,José Ricardo Macedo; Bosi,Cristiam; Nicodemo,Maria Luiza Franceschi; Santos,Patrícia Menezes; Cruz,Pedro Gomes da; Parmejiani,Renan Suaiden.
In this study, the microclimate changes in silvopastoral systems are quantified at different time and spatial scales and compared with single-pasture systems. The study was conducted in a silvopastoral system in São Carlos, Brazil (22°01' South and 47°53' West). The silvopastoral system consisted of grass pastures [Urochloa (sin. Brachiaria) decumbens cv. Basilik] lined with strips of native trees spaced at 17 m. Continuous microclimate measurements (air temperature, relative humidity, wind speed, and incident photosynthetically active radiation) were carried out from September 2010 to September 2012 at two positions of the silvopastoral system (2.0 and 8.5 m from the rows of trees) and at a pasture under full sunlight, located in an adjacent area. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solar radiation; Air temperature; Cattle; Water balance; Urochloa decumbens.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052015000100110

Induced immune response of Escherichia coli BL21 expressing recombinant MSP1a and MSP1b proteins of Anaplasma marginale
Provedor de dados: 52
Autores: Tamekuni,Katia; Vidotto,Marilda Carlos; Felix,Samuel Rodrigues; Igarashi,Michelle; Garcia,João Luis; Coelho,Adriana Letícia; Gasparini,Marcela Ribeiro; Marana,Elizabete Regina Marangoni; Silva,Sérgio Silva da; Vidotto,Odilon.
This work aims to evaluate the potential of immunization with E. coli BL21 expressing the recombinant rMSP1a and rMSP1b proteins of Anaplasma marginale. E. coli BL21 was transformed with recombinant plasmids pET102/msp1α and pET101/msp1β, and rMSP1a and rMSP1b were expressed after induction by IPTG. BALB/c mice were vaccinated with formolized BL21/rMSP1a and BL21/rMSP1b, and the production in mice sera of whole IgG was determined by ELISA. The mice immunized with BL21/rMSP1a showed a better humoral response for whole IgG when compared to the mice immunized with BL21/rMSP1b; these mice exhibited a small response after the second vaccination. Sera of mice immunized with BL21/rMSP1a reacted via western blot with BL21 and rMSP1a, with molecular masses varying...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anaplasma marginale; MSP1a; MSp1b; Vaccine; Mice; Cattle.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700016

Isolation in HRT-18 cells and molecular analysis of a BCoV strain from diarrheic feces of naturally infected calves
Provedor de dados: 52
Autores: Stipp,Danilo Tancler; Barry,Aline Fernandes; Alfieri,Alice Fernandes; Bodnar,Lívia; Alfieri,Amauri Alcindo.
Bovine coronavirus (BCoV) may cause acute diarrhea in newborn calves, leading to significant economic losses for cattle farmers. There are several diagnostic techniques used to detect BCoV in calf fecal samples, but virus isolation still has advantages for antigenic and genomic characterization. This study describes the isolation in HRT-18 cells and molecular characterization of Brazilian BCoV wild-type strains. Three fecal samples from diarrheic 30 day-old calves were inoculated in HRT-18 cell monolayers, which were then evaluated for HA titers and tested using semi-nested PCR followed by RFLP and sequencing. Two samples were successfully isolated and presented HA titers of 16 and 32 units per 25 mL. The results were confirmed using semi-nested PCR and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Diarrhea; Bovine coronavirus; Cell culture; Molecular analyses.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700007

A bovine teat papilloma specimen harboring Deltapapillomavirus (BPV-1) and Xipapillomavirus (BPV-6) representatives
Provedor de dados: 52
Autores: Claus,Marlise Pompeo; Lunardi,Michele; Alfieri,Amauri Alcindo; Otonel,Rodrigo Alejandro Arellano; Ferracin,Lara Munique; Fungaro,Maria Helena Pelegrinelli; Alfieri,Alice Fernandes.
The common occurrence of multiple papillomavirus infections has been shown in several studies involving the human host. However, investigations with the aim of identifying mixed papillomavirus infections in cattle have been conducted only recently. In the current work we describe a co-infection with two different bovine papillomavirus (BPV) types that was identified in a bovine teat papilloma. The skin wart was obtained from a cow belonging to a Brazilian beef herd. A PCR assay was carried out with the FAP primer pair, which amplifies a partial segment of the L1 gene (approximately 478 bp), and the amplicon was submitted to direct sequencing. Because nucleotide sequences with satisfactory quality scores were not obtained, the amplicon was cloned and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Cutaneous papillomatosis; BPV; Co-infection.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700012

Multiple bovine papillomavirus infections associated with cutaneous papillomatosis in brazilian cattle herds
Provedor de dados: 52
Autores: Claus,Marlise Pompeo; Lunardi,Michele; Alfieri,Amauri Alcindo; Otonel,Rodrigo Alejandro Arellano; Sartori,Daniele; Fungaro,Maria Helena Pelegrinelli; Alfieri,Alice Fernandes.
Cutaneous papillomatosis is a pathological condition commonly found in cattle and is characterized by the presence of benign proliferative tumors caused by bovine papillomavirus (BPV) infection. While multiple infections with human papillomavirus (HPV) are common in healthy and immunodeficient humans, studies with the aim of identifying mixed infections are still sporadic in veterinary medicine. The aim of this study is to describe the occurrence of multiple BPV infections in cattle affected by cutaneous papillomatosis. Fifteen skin warts were collected from at least two diverse anatomical regions of six bovines with papillomatosis belonging to three cattle herds from the Paraná state in Brazil. The BPV types present in the skin wart samples were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Skin warts; BPV; Mixed infections.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700013

An outbreak of winter dysentery caused by bovine coronavirus in a high-production dairy cattle herd from a tropical country
Provedor de dados: 52
Autores: Takiuchi,Elisabete; Barry,Aline Fernandes; Alfieri,Alice Fernandes; Filippsen,Patrícia; Alfieri,Amauri Alcindo.
Bovine coronavirus (BCoV) is a known cause of winter dysentery (WD) in adult cattle. The morbidity of the disease is high, that results in a significant decrease in milk production and consequently, economic losses. In the present study, we report on a classical outbreak of WD that affected a high-production Holstein dairy herd raised in a tropical country. The lactating batch included 154 cows, and 138 (90%) presented diarrhea in a short (nine days) period of time. Three (2%) cows died. The other batches of animals did not become ill. The evolution of the disease in the herd, including the clinical signs and epidemiological features, strongly suggested a WD case. Semi-nested PCR and RFLP confirmed that BCoV was the cause of the infection. Samples tested...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Dairy herd; Winter dysentery; Diarrhea; Bovine coronavirus.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700008

Growth performance, carcass characteristics and meat quality of finishing bulls fed crude glycerin-supplemented diets
Provedor de dados: 52
Autores: Françozo,Mônica Chaves; Prado,Ivanor Nunes do; Cecato,Ulysses; Valero,Maribel Velandia; Zawadzki,Fernando; Ribeiro,Ossival Lolato; Prado,Rodolpho Martin do; Visentainer,Jesuí Vergílio.
This study was conducted to evaluate the performance, carcass characteristics and chemical composition of Longissimusmuscle (LM) of the bulls. Twenty-four Nellore bulls were used in a complete randomised design. The bulls were randomly assigned to one of the three diets containing 0, 5 or 12% glycerin. Final BW and ADG were similar (P&amp;gt;0.05) between the bulls fed with 5 or 12% of glycerin but were higher (P&lt;0.10) compared to the bulls fed without glycerin. DMI and feed efficiency was not affected (P&amp;gt;0.05) by glycerin level. Hot carcass weight increased (P&lt;0.10) when glycerin was fed at 5%. Glycerin level did not affect (P&lt;0.05) the dressing percentage and fat thickness. LM increased (P&lt;0.10) when glycerin was fed at 12%. Dietary...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Fat; Glycerin; Human health; Silage corn.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132013000200019

Signatures of Selection From Candidate Gene Polymorphisms Panel in Five Zebu Breeds
Provedor de dados: 52
Autores: Parra-Bracamonte,Gaspar Manuel; Martinez-Gonzalez,Juan Carlos; Sifuentes-Rincón,Ana María; Rosa-Reyna,Xochitl Fabiola la.
ABSTRACT The signals of selection using candidate genes polymorphism were studied in five zebu breeds of Mexico. Three loci from GHRH and complementarily Steroyl Co Desaturase F762, Dopamine Beta Hydroxilase 17299, and LEP3272 were identified under selection. Findings depict Zebu selection pressure mainly on Brahman breed resulting in a divergent structure pattern.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Population structure; PCA; Selection signals.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000100442

Testicular Histomorphometric Evaluation of Zebu Bull Breeds
Provedor de dados: 52
Autores: Andreussi,Paulo Antônio Terrabuio; Costa,Deiler Sampaio; Faria,Fábio José Carvalho; Fernandes,Carlos Antônio Carvalho; Santos,Marcelo Diniz; Silva,Juliana Correa Borges.
The objective of this study was to evaluate the quantitative histology and testicular biometrics in zebu bulls of different breeds. Testicular fragments of Nelore (n=10), Polled Nelore (n=6), Gir (n=5), Guzerat (n=5) and Tabapuã bulls (n=5) were used. The fragments were perfusion-fixed in Karnovsky solution, embedded in glycol methacrylate and stained with toluidine blue-1% sodium borate. The Nelore animals had a higher tubular volumetric proportion (85.2%) and greater height of the seminiferous epithelium (73.2 µm) than the Gir, Guzerat and Tabapuã breeds. The Nelore animals also had a higher volumetric proportion of Leydig cells (5.2%) than the Guzerat and Tabapuã breeds. There was no significant difference for any of these parameters between the Nelore...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Testis; Volumetric proportion; Seminiferous tubule.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000600900

Development and Evaluation of an Indirect ELISA: Serological Survey to Detect Specific Antibodies to Bovine Herpesvirus 4
Provedor de dados: 52
Autores: Krüger,Ernesto Renato; Penha,Tânia Regina; Hummelgen,Fernanda Cristina; Agottani,Jorge Bacila; Reva,Demétrio; Gonçalves,Robson; Thomaz-Soccol,Vanete.
ABSTRACTThe aim of this work was to develop and evaluate an indirect enzyme-linked immunosorbent assay (ELISA) and made a serological screening for specific antibodies to BoHV-4. Bovine serum samples were collected from different Brazilian states and evaluated for the presence of antibodies for BoHV-4 and BoHV-1. The serological results obtained showed that the indirect ELISA assay could be applied for the detection of specific antibodies for BoHV-4. The ELISA test allowed concluding that BoHV-4 is present in bovines in every Brazilian state from which serum samples were collected. The ELISA assay here standardized proved to be useful for the epidemiological studies and showed a positivity range from 1.8 to 66% in Brazil.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: BoHV-4; Serology; Diagnostic; Cattle; Epidemiology.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000500725

Neurological and epidemiological aspects of a BoHV-5 meningoencephalitis outbreak
Provedor de dados: 52
Autores: Lunardi,Michele; Claus,Marlise Pompeo; Lisbôa,Júlio Augusto Naylor; Amude,Alexandre Mendes; Headley,Selwyn Arlington; Alfieri,Alice Fernandes; Alfieri,Amauri Alcindo.
Bovine herpesvirus 5 is a DNA virus that has been associated with meningoencephalitis in young cattle. While its clinical diagnosis is obscured by other major diseases that also produce similar neurological disease in cattle, the use of conventional virological techniques is hampered by the establishment of a lifelong latent infection in the host and the difficulty in differentiating BoHV-1 and BoHV-5. The aim of the current report is to describe the clinical and epidemiological aspects observed in a natural outbreak of BoHV-5 meningoencephalitis in a dairy cattle herd from Brazil. In the outbreak, the affected animals consisted of nine calves, which presented three possible forms of the neurological disease, subjectively classified as peracute, acute, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Central nervous system; Bovine herpesvirus 5; Multiplex-PCR.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700011

Influence of starch and casein administered postruminally on small intestinal sodium-glucose cotransport activity and expression
Provedor de dados: 52
Autores: Guimaraes,Kátia Cylene; Hazelton,Sarah Rodrigues; Matthews,James Clyde; Swanson,Kendall Carl; Harmon,David Lee; Branco,Antonio Ferriani.
Twenty-four Holstein steer calves (88 ± 3kg) with abomasal catheters were randomly assigned within blocks to one of four treatments. The treatments consisted of four abomasal infusions: water (control), 4 g/kg BW.d-1 of partially hydrolyzed starch (SH), 0.6 g/kg BW.d-1 of casein, and a mix of SH + casein. The small intestine was collected and five equidistan, 1m sites were identified (duodenum, jejunum 1, jejunum 2 jejunum 3 and ileum). Maltase specific activity in mucosal homogenate and brush border membrane vesicles, SGLT1 protein abundance, and sodium-dependent glucose uptake in brush border membrane vesicles did not differ between the calves receiving different abomasal infusion treatments. However, maltase specific activity in homogenates and brush...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Glucose; Maltase; Sodium-dependent glucose co-transporter; Starch.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000700007

Investigation of the possible role of Chlamydophila abortus in reproductive failures in nrazilian herds of domestic ruminants
Provedor de dados: 52
Autores: Silva-Zacarias,Francielle Gibson da; Alfieri,Amauri Alcindo; Spohr,Kledir Anderson Hofstaetter; Lima,Bruna Azevedo de Carvalho; Oliveira,Rosângela Claret de; Turilli,Carlo; Lunardi,Michele; Otonel,Rodrigo Alejandro Arellano; Freitas,Julio Cesar de.
Chlamydophila abortus (C. abortus) infection is related to reproductive failure in domestic ruminants. Although it has not been well characterized worldwide, this pathogen has already been identified in some European countries and in the USA. In Brazil, preliminary studies have shown serological evidence of C. abortus infection in herds with low antibody prevalence. Until now, the identification of C. abortus in biological samples from females presenting reproductive failures has not been described in Brazilian herds of domestic ruminants. The aim of this study was to evaluate the presence of the C. abortus in a collection of abortions from cattle (n=85), sheep (n=12), and goats (n=8), in samples of vaginal mucus from cows (n=13), sheep (n=90), and goats...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Small ruminants; Chlamydophila abortus; Abortion; Vaginal mucus; Semen.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700015

Isolation of Mycobacterium spp. in milk from cows suspected or positive to tuberculosis
Provedor de dados: 62
Autores: PARDO,Renata Bonini; LANGONI,Hélio; MENDONÇA,Lia Jeanne Pereira; CHI,Kung Dahr.
This study was performed considering the public health hazards related to the elimination of mycobacteria through milk of dairy cows suspected or positive for tuberculosis presenting no clinical alterations. A total of 780 milk samples from 52 animals, positive or suspected for tuberculosis, according to Stormont's test, were analysed to detect Mycobacterium spp. The samples consisted of 300 ml/cow, collected in the first milking of the day, during 15 days. Frozen samples were sent to the laboratory, inoculated in Löwenstein-Jensen with reduced glicerol (0.5%) and Stonebrink media and kept under 37ºC for at least 90 days. The genus of each observed colony was initially confirmed by Ziehl-Neelsen and auramin staining methods. The isolation of Mycobacterium...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tuberculosis; Cattle; Milk; Public health; Mycobacterium.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962001000600007

A random sample survey of bovine Brucellosis in the State of Paraíba, Brazil
Provedor de dados: 62
Autores: Leite,Ricardo de Miranda Henriques; Thompson,James Alan; Gonçalves,Vítor Salvador Picão; Leite,Rômulo Cerqueira; Bandeira,Dimas A.; Lage,Andrey Pereira.
A serosurvey was conducted to estimate the prevalence of bovine brucellosis in the State of Paraíba, Brazil. A random sample of six municipalities was selected from each of three ecoregions of the State: the Agreste/Litoral region (1), the Cariri/Curimatau region (2) and the Sertão region (3). These 18 municipalities were divided in quadrants and one herd was selected at random from each quadrant. The sampling scheme included herds with more than 50 bovines, which excludes small-holder subsistence livestock production. At least 32 animals were sampled within each herd, stratified in four age categories, as follows: (1) at least 8 animals under 6 months of age, (2) at least 8 animals of 7 to 18 months of age, (3) at least 8 animals of 19 to 30 months of age...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brucellosis; Epidemiology; Cattle; Paraíba; Brazil.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962003000900002

Seroprevalence of antibodies against group A rotavirus in cattle from a pioneer frontier in Brazilian Amazon
Provedor de dados: 62
Autores: Brandão,Paulo Eduardo; Cortez,Adriana; Ferreira,Fernando; Ferreira Neto,José Soares; Gregori,Fábio; Heinemann,Marcos Bryan; Homem,Valéria Stacchini Ferreira; Rodriguez,Cesar Alejandro Rosales; Jerez,José Antonio.
Rotavirus is a worldwide etiologic agent of diarrhea, responsible for large economic losses. We studied the seroprevalence of antibodies to group A rotavirus in cattle in 67 smallholder farms from Uruará municipality, using counterimmunoelectroosmophoresis with the NCDV strain as a standard antigen. Prevalence of positive smallholder farms was 95.6-100%. Significant differences were seen between age groups when the seropositivity rose from the youngest to the oldest groups and between females and males older than 1 year, when the seropositivity was higher in the first group.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Seroepidemiologic studies; Antibodies; Rotavirus; Cattle; Amazonia.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962002000100003

Diagnostic efficiency of Brucella soluble antigens in immunodiffusion tests and ability to differentiate Brucella abortus strain 19 vaccinated cattle
Provedor de dados: 62
Autores: DAFFNER,José; ABALOS,Pedro; PINOCHET,Lautaro; SCORTTI,Mariela; URCELAY,Santiago.
Three soluble antigens were compared by radial immunodiffusion (RID) and agar gel immunodiffusion (AGID) tests: a native haptene (NH) from Brucella melitensis 16M, and a polysaccharide (PS) from B. abortus 1119-3, both obtained by non-hydrolytic methods, and the (O-Chain) polysaccharide extracted also from B. abortus 1119-3 but using an hydrolytic method. Three groups of bovine sera were tested: a) Naturally infected (n = 76); b) Non-infected (n = 130) and c) S-19 vaccinated (n = 61); the sensitivity (Se), the specificity (Sp) and the ability to differentiate vaccinated (ADV) were determined in each group a, b and c respectively. The highest Se in the RID test (84.3%) was achieved by NH; while the three antigens gave 100% Sp. The O-Chain showed 100% ADV in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brucellosis; Immunodiffusion tests; Vaccination; Cattle.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95961999000300002

Endocrine profiles and ovulation rate of cows superovulated with FSH following passive immunization against steroid free-bovine follicular fluid
Provedor de dados: 62
Autores: ALVAREZ,Rafael Herrera; CARVALHO,João Batista Pereira de; ROSA E SILVA,Alzira; PERONE,Cibele Nunes; RIBELA,Maria Tereza Carvalho Pinto; OLIVEIRA FILHO,Enoch Borges de.
Ten multiparous non-lactating cows were randomly assigned to one of two groups. On days 8 to 12 after estrus, the first group was given 100 ml antiserum against steroid-free bovine follicular fluid (anti-bFF), which was produced in ovariectomized sheep. The second group (control) was given 100 ml nonimmune ovariectomized sheep serum. Six hours after injection, both groups were superovulated with FSH (18 NIH-FSH-S1 units) and LH (0.29 NIH-LH-S1 units) in a 4-day decreasing regime. On the morning of the third day a luteolytic dose of prostaglandin F2alpha analogue (cloprostenol) was given. Artificial inseminations (AI) were done 48 and 60 h later. Embryos were collected 7 days after AI by a nonsurgical method. Blood samples were taken throughout the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Superovulation; Follicular fluid; Passive immunization; Embryos; Cattle.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95961998000600007

Experimental ammonia poisoning in cattle fed extruded or prilled urea: clinical findings
Provedor de dados: 62
Autores: Antonelli,Alexandre Coutinho; Mori,Clara Satsuki; Soares,Pierre Castro; Kitamura,Sandra Satiko; Ortolani,Enrico Lippi.
Twelve yearling Girolando, rumen-fistulated steers never fed with urea before, were distributed randomly in 2 groups of 6 animals each. Both groups were administered intraruminally a single dose (0.5 g/kg BW) of extruded (G1) or prilled (G2) urea to induce ammonia poisoning. The clinical picture was followed for the next 240 min. Besides the classic signs the present study found 3 new additional sign: dehydration, hypothermia and ingurgitated episcleral veins. Convulsion, considered the definite sign, was seen in 5 out of 6 animals from both groups. One steer (G1) had only fasciculation, while another (G2) developed typical clinical signs, but not convulsion, and recovered spontaneously without treatment. The appearance of clinical signs such as muscle...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Urea; Ammonia poisoning; Clinical picture; Cattle.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962004000100010

Chromosome analysis in cattle and horses
Provedor de dados: 62
Autores: AMARANTE,Mônica Regina Vendrame; TSURIBE,Patrícia Miyuki; JORGE,Wilham; ROCHA,Gilberto Pedroso da.
We analyzed the chromosomes of 117 cows of different breeds for the identification of centric fusion and the chromosomes of 100 young Andaluz and Brasileiro de Hipismo mares for the identification of 63,X lines, using the technique of X chromosome identification based on interstitial heterochromatin on the long arm.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Cattle; Horse; Chromosome.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962000000400006

Amniotic cell culture during different ages of gestation for karyotype analysis in bovine
Provedor de dados: 62
Autores: EIRAS,Paola Ribeiro Seabra; BARRETO FILHO,João Bosco; GOLGHER,Romain Rolland; SANTOS,Sandra Regina Quintino dos.
Bovine karyotyping has become an important diagnostic tool in animal breeding. In the prenatal period it can diagnose several chromosomal abnormalities such as Robertsonian translocations, testicle feminization syndrome, gonadal dysgenesis and Klinefelter’s syndrome. An important cell source for karyotype analysis is the amniotic fluid. It has been extensively used in humans but in bovine, however, this is not the case despite its diagnostic value. Since a small percentage of cells is viable, cells and their growth conditions as well as the handling of the material should be optimal to insure a successful analysis. For this, we have compared the growth efficiency for bovine amniocytes in two media, employing cells from 10 to 14 weeks of gestation....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Karyotypes; Cell culture; Amnion; Cattle.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962000000400005

S-100 dendritic cells in normal and Dermatobia hominis infested cattle skin
Provedor de dados: 62
Autores: OLIVEIRA-SEQUEIRA,Teresa Cristina Goulart de; BACHI,Carlos Eduardo; LELLO,Edy de.
S-100 dendritic cells immunolabeling were investigated in uninfested skin biopsies from five Nelores, five Holstein-Friesian and five crossbreed (Holstein-Friesian x Nelores) calves. The group of crossbreed animal was experimentally infested with 100 first-instar larvae of Dermatobia hominis and biopsies were obtained 24, 48, 72 and 168 hours after infestation. Samples obtained prior to infestation from these animals were used as control. Rabbit anti-protein S-100 antibody and the avidin-biotin-peroxidase method were used for immunolabeling. Melanocytes, nerves and endothelial cells and dermal dendritic cells (DC) were positive to protein S-100. DCs were exclusively detected in the superficial dermis close to the basal layer of both normal and parasitized...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dendritic cell; Protein; Cattle; Skin; Dermatobia hominis.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962000000400007

Effect of lipoarabinomannan from Mycobacterium avium subsp avium in Freund’s incomplete adjuvant on the immune response of cattle
Provedor de dados: 56
Autores: Colavecchia,S.B.; Jolly,A.; Fernández,B.; Fontanals,A.M.; Fernández,E.; Mundo,S.L.
The aim of the present study was to determine whether lipoarabinomannan (LAM), in combination with Freund’s incomplete adjuvant (FIA), was able to improve cell-mediated and antibody-mediated immune responses against ovalbumin (OVA) in cattle. Twenty-three calves were assigned to four treatment groups, which were subcutaneously immunized with either OVA plus FIA, OVA plus FIA and LAM from Mycobacterium avium subsp avium, FIA plus LAM, or FIA alone. Lymphoproliferation, IFN-γ production and cell subpopulations on peripheral blood mononuclear cells before and 15 days after treatment were evaluated. Delayed hypersensitivity was evaluated on day 57. Specific humoral immune response was measured by ELISA. Inoculation with LAM induced higher levels of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lipoarabinomannan; Cattle; Immunomodulation; Mycobacterium avium subsp avium.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012000200008

Isolation of Shiga toxigenic Escherichia coli from butcheries in Taquaritinga city, State of São Paulo, Brazil
Provedor de dados: 58
Autores: Rodolpho,Daniela; Marin,José Moacir.
Shiga toxigenic Escherichia coli (STEC) has been implicated as the cause of several human diseases. Samples (ground beef, grinding-machines and human hands) from 23 butcheries were assayed for E. coli using standard microbiological methods, and 287 isolates were submitted to polymerase chain reaction for the detection of stx 1, stx 2 and eae genes. Four STEC isolates were recovered, two from ground beef and two from grinding-machines; all harbored the stx 2 gene and were negative for the eae gene. All E. coli isolates including the four STEC were screened for antibiotic resistance. High levels of resistance against several antimicrobial agents were detected; those most commonly observed were to tetracycline (76.6%), amoxicillin (64.1%) and cephalothin...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Escherichia coli; STEC; Stx 2; Antibiotic resistance; Ground beef; Cattle.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000400004

Improvement of an in-house ELISA for bovine paratuberculosis serology in Brazil
Provedor de dados: 58
Autores: Marassi,Carla Dray; Fonseca,Leila de Souza; Ristow,Paula; Ferreira,Rachel; Lilenbaum,Walter; Oelemann,Walter M.R.
Paratuberculosis (Johne's disease) is a chronic enteritis in cattle caused by infection with Mycobacterium avium subsp. paratuberculosis (Map). In Brazil, few reports describe the isolation of the organism. The gold standard test for Map is its isolation from tissues or feces. Moreover, bacterial growth is slow and test results are available only after three to five months of incubation Furthermore, shedding of bacilli at levels detectable by fecal culture is irregular and does not occur during the early stages of infection, which compromises the sensitivity of this methodology. The most common immunological tests to identify Map infection are complement fixation test (CFT), agar gel immunodiffusion (AGID) and enzyme-linked immunoassay (ELISA). In Brazil,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Paratuberculosis; Cattle; ELISA; Serology; Diagnosis.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822005000200004

Paratuberculosis: an update
Provedor de dados: 58
Autores: Lilenbaum,W.; Marassi,C.D.; Oelemann,W.M.R.
Paratuberculosis is a chronic enteritis that affects ruminants and is caused by Mycobacterium avium paratuberculosis (Map). The disease is worldwide spread and causes important economic losses. In Brazil, the bacillus was isolated in the south and northeast regions of the country and in Rio de Janeiro, but there are no enough epidemiological studies about its occurrence. Isolation of Map from tissues or fecal samples is 100% specific, but Map shows the most fastidious growth of all mycobacteria. Incubation lasts 8 -12 weeks, with a dependency on exogenous mycobactin J. Diagnostic tests based on specific DNA sequences allow fast and secure identification, and PCR has been used to confirm positive culture results and to identify Map in feces, milk and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Paratuberculosis; Bovine; Mycobacterium; Cattle; Map.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000400001

Diagnosis of paratuberculosis in cattle: microbiological culture, serology and PCR
Provedor de dados: 58
Autores: Carvalho,Isabel A.; Campos,Vinicius E. B.; Souza,Iana M.; Zanardo,Larissa G.; Ribeiro Filho,Jose D.; Gomes,Marcos J. P.; Moreira,Maria A. S.
The aim of this study was to confirm clinical diagnosis of paratuberculosis in two cows showing suggestive clinical signs of the disease. Based on clinical signs, in culture and in IS900 PCR results from the individual milk samples it was possible to diagnose paratuberculosis in the cows studied.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mycobacterium avium subspecies paratuberculosis (MAP); Milk; Cattle; IS900; ISMav2.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000200020

Characterization of Klebsiella pneumoniae associated with cattle infections in southwest China using multi-locus sequence typing (MLST), antibiotic resistance and virulence-associated gene profile analysis
Provedor de dados: 58
Autores: Cheng,Fangjun; Li,Zhangcheng; Lan,Shimei; Liu,Wei; Li,Xiaoyan; Zhou,Zuoyong; Song,Zhenhui; Wu,Juan; Zhang,Manli; Shan,Wenjie.
Abstract Klebsiella pneumoniae is important human and animal pathogen that causes a wide spectrum of infections. In this study, isolates from cattle nasal swabs samples were identified by 16S rRNA, and to evaluate the antimicrobial susceptibility, virulence gene carrying levels, and multilocus sequence typing of K. pneumoniae isolates. 33 isolates of K. pneumoniae were isolated and identified in 213 nasal swabs samples, of which 12 were hypervirulent K. pneumoniae strains. Extended Spectrum Beta-Lactamases genes were found in 93.4% of the strains. Of which, TEM was the most prevalent (93.4%), followed by CTX-M and SHV were 57.6% and 39.4%, respectively. A main mutation pattern of quinoloneresistance-determining region, Thr83-Ieu and Asp87-Asn in gyrA and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Antimicrobial susceptibility; Klebsiella pneumonia; MLST; Virulence genes.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000500093

Diagnostics of tuberculosis and differentiation of nonspecific tuberculin reactions in animals
Provedor de dados: 58
Autores: Basybekov,Sovetzhan Z.; Bazarbayev,Marat B.; Yespembetov,Bolat A.; Mussaeva,Assiya; Kanatbayev,Serik G.; Romashev,Kanapya M.; Dossanova,Aigul K.; Yelekeyev,Tokseiit A.; Akmatova,Elmira K.; Syrym,Nazym S.
Abstract Tuberculosis is a serious disease of humans and animals, caused by bacteria of the Mycobacterium genus. This leads to complications in the life of the sick person, and subsequently to death. The cattle, who have been diagnosed with this bacterium, are usually sent to the slaughter, with the result that their livestock is reduced. Mycobacteriosis is also a disease, after determining which cattle are most often sent to slaughter. Such a reduction in livestock numbers has a negative effect on the economy. Of the 300 samples from the animals, 25 cultures of atypical bacteria responding to tuberculin were isolated. A series of tests - intravenous tuberculin test, ophthalmic test, palpebral test, "ZhAT" test, showed that most of the tuberculosis changes...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Atypical mycobacterium; Tuberculin skin test; Palpebral method; Immunization.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000200329

Isolation of leptospira Serovars Canicola and Copenhageni from cattle urine in the state of Paraná, Brazil
Provedor de dados: 58
Autores: Zacarias,Francielle Gibson da Silva; Vasconcellos,Silvio Arruda; Anzai,Eleine Kuroki; Giraldi,Nilson; Freitas,Julio Cesar de; Hartskeerl,Rudy.
In 2001, 698 urine samples were randomly collected from cattle at a slaughterhouse in the State of Paraná, Brazil. Direct examination using dark field microscopy was carried out immediately after collection. Five putative positive samples were cultured in modified EMJH medium, yielding two positive cultures (LO-14 and LO-10). Typing with monoclonal antibodies revealed that the two isolates were similar to Canicola (LO-14) and Copenhageni (LO-10). Microscopic agglutination test results show that Hardjo is the most common serovar in cattle in Brazil. Rats and dogs are the common maintenance hosts of serovars Copenhageni and Canicola. The excretion of highly pathogenic serovars such as Copenhageni and Canicola by cattle can represent an increasing risk for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Leptospira; Culture; Leptospirosis; Diagnosis; Cattle.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000400028

Evaluation of antibodies production against Borrelia burgdorferi in cattle submitted to rBm86 protein Boophilus microplus tick immunization and associated challenges influence
Provedor de dados: 58
Autores: Ishikawa,Márcia Mayumi; Fonseca,Adivaldo Henrique; Yoshinari,Natalino Hajime; Osório,Ana Luiza Alves Rosa.
IgG antibodies production against Borrelia burgdorferi in immunized cattle with rBm86 protein from Boophilus microplus was evaluated as well as the influence of the association between immunizations and stress through indirect ELISA test during one year. In the present study there was no influence of the isolated challenged used on the production of IgG antibodies against B. burgdorferi. The rBm86 immunogen did not cause significant oscillation in the production of IgG antibodies against B. burgdorferi capable to interfere in the serological results for Lyme Borreliosis in cattle. This study demonstrated the possibility of transitory changes in the production of antibodies after the association of vaccine stimuli and stress, emphasizing the necessity of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antibodies; Borrelia; Cattle; Tick.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000500032

Virulence profiles of Shiga toxin-producing Escherichia coli and other potentially diarrheagenic E.coli of bovine origin, in Mendoza, Argentina
Provedor de dados: 58
Autores: Pizarro,M.A.; Orozco,J.H.; Degarbo,S.M.; Calderón,A.E.; Nardello,A.L.; Laciar,A.; Rüttler,M.E.
This study described a group of strains obtained from a slaughter house in Mendoza, in terms of their pathogenic factors, serotype, antibiotype and molecular profile. Ninety one rectal swabs and one hundred eight plating samples taken from carcasses of healthy cattle intended for meat consumption were analyzed. Both the swab and the plate samples were processed to analyze the samples for the presence of virulence genes by PCR: stx1, stx2, eae and astA. The Stx positive strains were confirmed by citotoxicity assay in Vero cells. The isolates were subsequently investigated for their O:H serotype, antimicrobial susceptibility and molecular profile by Random Amplification of Polymorphic DNA (RAPD). Twelve E.coli strains were identified by their pathogenicity....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hemolitic Uremic Syndrome (HUS); Shiga Toxin Escherichia coli (STEC); Enteroaggregative Stable toxin (EAST1); Enteropathogenic Escherichia coli (EPEC); Foodborne diseases; Cattle.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000400021

Bovine herpesvirus 5 detection by virus isolation in cell culture and multiplex-PCR in central nervous system from cattle with neurological disease in Brazilian herds
Provedor de dados: 58
Autores: Claus,Marlise Pompeo; Alfieri,Alice Fernandes; Médici,Kerlei Cristina; Lunardi,Michele; Alfieri,Amauri Alcindo.
Bovine herpesvirus 5 (BoHV-5) is an important cause of meningoencephalitis in young and adult cattle. The multiple etiology of neurological disturbances in cattle makes the quick and conclusive diagnosis of BoHV-5 infection important for animal and public health, mainly because of herbivore rabies that is endemic in Brazilian cattle herds. The objective of this retrospective study was to use a multiplex-polymerase chain reaction (multiplex-PCR) for BoHV-5 and BoHV-1 glycoprotein C gene detection from stored central nervous system (CNS) tissue fragments of cattle with neurological clinical signs. Forty-seven frozen CNS samples of young and adult cattle from 31 herds in three Brazilian geographical regions (South, Southeast, and Center-west) were evaluated....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Meningoencephalitis; Bovine herpesvirus 5; Multiplex-PCR.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000300019

Comparison of an in-house and a commercial enzyme-linked immunosorbent assay (ELISA) for diagnosis of paratuberculosis
Provedor de dados: 58
Autores: Marassi,Carla Dray; Gonzaga,Janete da Silva; Ristow,Paula; Ferreira,Rachel; Fonseca,Leila Souza; Oelemann,Walter; Lilenbaum,Walter.
An in-house PPA-ELISA was compared to a commercial ELISA using a panel of 108 serum samples. In relation to commercial test, in-house assay presented 100% of sensitivity and 83.5% of specificity and a high concordance (kappa&gt; 0.5), which demonstrates that the in-house assay is a valuable tool for use in developing countries.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Mycobacterium avium subsp. paratuberculosis; Serology.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000100002

Ruminal Degradability of Dry Matter and Crude Protein from Moist Dehulled Lupin and Extruded Rapeseed Meal
Provedor de dados: 117
Autores: Barchiesi-Ferrari,Claudia; Anrique,René.
The flow of ruminal undegradable protein (RUP) to the small intestine can be increased if ruminal degradation of dietary protein is reduced. The objective of this study was to evaluate the effect of extrusion on ruminal degradability of dry matter (DM) and crude protein (CP) from dehulled lupin (Lupinus albus L.) (DL) and rapeseed (Brassica napus L.) meal (RM). Unextruded soybean (Glicine max L.) meal (SBM) was used as a control. The DL was extruded at 130 ºC with 20% moisture and RM was extruded at 120 ºC with 20% moisture. Ruminal degradability was evaluated in situ by incubating feed samples for 2, 4, 8, 12, 24, and 48 h of fermentation in the rumen using three rumen-fistulated dairy cows. Values of CP soluble fraction (“a”) in SBM, DL, extruded...
Tipo: Journal article
Palavras-chave: Extrusion; Protein supplements; Protein degradation; Soybean meal; Cattle.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000300014

Ingestive behavior of steers on pastures of Brachiaria brizantha and Cynodon dactylon
Provedor de dados: 118
Autores: Zanine,Anderson de M; Vieira,Bruno R; Ferreira,Daniele de J; Vieira,Antônio J. M; Silveira,Márcia C. T. da; Siva,Wilton L. da; Cecon,Paulo R.
An experiment was carried out to assess the performance of steers on Brachiaria brizantha and Cynodon dactylon cv. Coast cross pastures by the continuous stocking method with a variable stocking rate. A completely randomized experimental design was used with two pastures representing the treatments, each containing 10 replicates. The results of t-tests demonstrated that the steers grazed for less time (7:19 h) on the B. brizantha grass pasture than the on Coast-cross grass pasture (8:13 h). There was no difference in rumination time from 6:46 and 6:89 h for the B. brizantha and Coast-cross pastures, respectively. There was a significant difference for the values regarding the time that the steers remained idle, and the animals were more frequently idle on...
Tipo: Journal article
Palavras-chave: Cattle; Ethology; Grazing; Idleness.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202016000200012

Seasonal and annual changes in the quality of native rangeland selected by grazing steers in northern Mexico
Provedor de dados: 118
Autores: Reyes,Osvaldo; Murillo,Manuel; Herrera,Esperanza; Carrete,Francisco O.
The objective of this study was to determine and compare seasonally the chemical composition, in vitro gas production, in situ degradability and ruminal fermentation of the diet selected by cattle grazing on native rangeland over two years. Diet samples were collected from four esophageal fistulated steers (350 ± 3 kg BW), and four ruminally fistulated steers (342 ± 1.5 kg BW) were used to evaluate degradation and ruminal fermentation. Data were analyzed using a repeated measurements design. The crude protein (CP), in vitro dry matter digestibility (IVDMD) and metabolizable energy (ME) were higher in 2008 (P&amp;#8804;0.01) and in the summer (P&amp;#8804;0.05). The volatile fatty acids (VFA) and propionate concentrations were affected by season and year...
Tipo: Journal article
Palavras-chave: Cattle; Grazing; In vitro gas production; In situ degradation; Ruminal fermentation.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202016000200003

Atypical bovine interstitial pneumonia in a semi-intensive beef cattle system
Provedor de dados: 65
Autores: Coelho,Ana Carolina Barreto; Oliveira,Plínio Aguiar; Santos,Bianca Lemos dos; Estima-Silva,Pablo; Scheid,Haide Valeska; Leal,Sofia del Carmen Bonilla de Souza; Marcolongo-Pereira,Clairton; Schild,Ana Lucia.
ABSTRACT: The aim of the present study was to describe an outbreak of atypical interstitial pneumonia affecting 15 Angus cattle aged 7-30 months in the south of Rio Grande do Sul. The clinical course of the disease was approximately 1-3 days. The cattle were kept in the native field and had received feed containing the remains of wafers from a food factory before the outbreak. Clinical signs included dyspnea and abdominal breathing, with a clinical evolution period of up to 3 days. Nine animals presented apathy and respiratory difficulty and died within 24h, while three animals exhibited a clinical evolution period of 36-48h. Three other animals died without any clinical signs. The main macroscopic lesions were observed in the lungs, which did not collapse...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pulmonary edema; Emphysema; Respiratory disorder; Cattle; Hypersensitivity; Interstitial pneumonia.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001100551

Botulism in ruminants in Brazil
Provedor de dados: 65
Autores: Silva,Rodrigo Otávio Silveira; Oliveira Junior,Carlos Augusto; Gonçalves,Luciana Aramuni; Lobato,Francisco Carlos Faria.
ABSTRACT: Botulism is an intoxication caused by the ingestion of neurotoxins secreted by  Clostridium botulinum. It affects all warm-blooded animals and some fishes and is characterized by progressive flaccid symmetrical paralysis. Despite the known importance of this disease in ruminants, the Brazilian literature only includes case studies and outbreak descriptions. In addition, the epidemiology of botulism in cattle has markedly changed over the past two decades. The aim of this study is to review these characteristics and to provide recent data on the occurrence of botulism in ruminants in Brazil.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Flaccid paralysis; Clostridium botulinum; Cattle; Buffaloes; Goats; Sheep.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000801411

Pithecellobium dulce, Tagetes erecta and Cosmos bipinnatus on reducing enteric methane emission by dairy cows
Provedor de dados: 65
Autores: Pineda,Gloria Stefanny Hernández; Beltrán,Paulina Elizabeth Pedraza; Benaouda,Mohammed; García,José Manuel Palma; Nova,Francisca Avilés; Molina,Luisa; Ortega,Octavio Alonso Castelán.
ABSTRACT: The aim of the present research was to evaluate the effect of Pithecellobium dulce, Tagetes erecta and Cosmos bipinnatus on methane emission, milk yield and dry matter intake in dairy cattle. A 4×4 Latin square experimental design was employed, using four multiparous Holstein cows of 553±72.4kg body weight, at mid lactation and average milk yield of 17.3±3kg/day. The experiment lasted 92 days, divided into four experimental periods of 23 days each. All cows had free access to maize and alfalfa silage in a 50:50 proportion, 4kg of concentrate/day and ad libitum access to water. Treatments consisted in supplementation of 0.5kg/day of the experimental plants, with one control treatment without supplementation. Each cow received one of each treatment...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Methane; Cattle; Climate change; Mitigation; Tannins.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018001000650

Spatial clustering analysis of the foot-and-mouth disease outbreaks in Mato Grosso do Sul state, Brazil - 2005
Provedor de dados: 65
Autores: Negreiros,Rísia Lopes; Amaku,Marcos; Dias,Ricardo Augusto; Ferreira,Fernando; Cavalléro,João Crisostomo Mauad; Ferreira Neto,José Soares.
In the southern region of Mato Grosso do Sul state, Brazil, a foot-and-mouth disease (FMD) epidemic started in September 2005. A total of 33 outbreaks were detected and 33,741 FMD-susceptible animals were slaughtered and destroyed. There were no reports of FMD cases in other species than bovines. Based on the data of this epidemic, it was carried out an analysis using the K-function and it was observed spatial clustering of outbreaks within a range of 25km. This observation may be related to the dynamics of foot-and-mouth disease spread and to the measures undertaken to control the disease dissemination. The control measures were effective once the disease did not spread to farms more than 47 km apart from the initial outbreaks.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Foot-and-mouth disease; Spatial clustering analysis; Cattle; Epidemiology; Brazil.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782009000900035

Virus isolation in cell culture for confirmatory diagnostic of rabies in bovine specimens
Provedor de dados: 65
Autores: Kanitz,Fabio Adriano; Cargnelutti,Juliana Felipetto; Weiblen,Rudi; Batista,Helena Beatriz de Carvalho Ruthner; Flores,Eduardo Furtado.
ABSTRACT: This study investigated the suitability of virus isolation (VI) in mouse neuroblastoma cells (N2A) and baby hamster kidney cells (BHK-21) as a confirmatory test for diagnosis of bovine rabies. Fourty-eight brain samples from cattle suspected of rabies were initially submitted to fluorescent antibody test (FAT) and mouse inoculation test (MIT) for routine diagnostic. Subsequently, these specimens were submitted to three protocols of VI in each cell line: a single 24h or 72h passage (T1, T2), or three 48h passages (T3). The FAT and MIT combined detected 32/48 positive samples, from which MIT detected 32 and FAT 31. The average time required for final MIT results was 12.3 days (8 - 21). VI in BHK-21 cells provided definitive, positive results in...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Rabies; Cattle; Outbreaks; Diagnostic; Virus isolation.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015001202193

Caudal vena cava thrombosis in a dairy cow (Bos taurus) in Argentina
Provedor de dados: 65
Autores: Schild,Carlos; Armendano,Joaquín Ignacio; Liboreiro,Matías; Bresky,Florencia; Morrell,Eleonora; Odriozola,Ernesto; Cantón,Germán.
ABSTRACT: Caudal vena cava thrombosis (CVCT) is an acute disease secondary to ruminal lactic acidosis and rumenitis with fatal outcome in cattle fed with a high-grain diet. The aim of this paper is to describe CVCT in an adult Holstein cow from a herd in Balcarce, Buenos Aires, Argentina. Clinical signs included dyspnea, weakness, recumbence, and hemoptysis, followed by death in 3.5 days. Important necropsy findings included multiple hepatic abscesses, a septic thrombus (4.0cm x 2.0cm) in the vena cava adjacent to the liver, and a 15cm hematoma in the right lung. Histological lesions observed in the pulmonary parenchyma included suppurative pneumonia with embolic bacterial colonies and severe interstitial fibroplasia. Dissociation and degeneration of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Holstein; Thrombosis; Vena cava; Hemoptysis.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000600551

A retrospective study on the diagnosis of clostridial myonecrosis in ruminants in Brazil
Provedor de dados: 65
Autores: Pires,Prhiscylla Sadanã; Ecco,Roselene; Silva,Rodrigo Otávio Silveira; Araújo,Marina Rios de; Salvarani,Felipe Masiero; Heneine,Luíz Guilherme Dias; Oliveira Júnior,Carlos Augusto de; Lobato,Francisco Carlos Faria.
ABSTRACT: A standardized immunochemistry method for the diagnosis of clostridial myonecrosis was applied to 38 formalized tissue samples from ruminants with clinical and post mortem history suggestive of blackleg or gas gangrene. The diagnosis of clostridial myonecrosis was confirmed in 37 out of 38 (97.4%) samples tested. Clostridium chauvoei and Clostridium perfringens type A were the most common agents found alone, being detected in ten (26.3%) and six (15.8%) samples, respectively. The other cases showed an association of two or three clostridia, with C. perfringens type A detected in 11 (29%) cases. Based on the findings of the present study, polyvalent vaccines against clostridial infections of animals incorporating C. perfringens would be more...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gas gangrene; Blackleg; Malignant edema; Cattle; Sheep; Immunohistochemistry.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000100452

Dermatological alterations in women working on dairy farm: a case study
Provedor de dados: 65
Autores: Vaz,Marta Regina Cezar; Bonow,Clarice Alves; Borges,Anelise Miritz; Almeida,Marlise Capa Verde de; Rocha,Laurelize Pereira; Severo,Luana de Oliveira.
The present study aims to identify dermatological alterations due to the work carried out by women on dairy farms and presents an intervention process on dermatology health with women working in these locations. It is a quasi-experimental study, in an intervention form, in which each subject is independent. It was performed with 20 women working on a dairy farm in Rio Grande, Rio Grande do Sul, Brazil, between July and October 2011. Most (60%) women identified dermatological changes due to the work. During the intervention, dermatological care action was focused on. The knowledge of these results offers valuable information for those who teach and advice people about dermatological care in rural working places, where such rates of occurrence are high.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Human being; Rural health; Dermatology; Occupational health nursing.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013000900014

Serological response to rabies virus induced by commercial vaccines in cattle
Provedor de dados: 65
Autores: Martins,Mathias; Quadros,João Motta de; Flores,Eduardo Furtado; Weiblen,Rudi.
ABSTRACT: The antibody response to rabies virus (RABV) induced by commercial vaccines in heifers was investigated. For this, 84 heifers were vaccinated twice (30 days interval) with each of four vaccines (G1 = 14 animals; G2 = 24; G3 = 22 and G4 = 24) and received a booster vaccination 360 days later. Serum samples collected at different intervals after vaccination and 30 days after booster were submitted to a virus neutralizing (VN) assay for RABV antibodies. Thirty days after the second vaccine dose, 92% of the immunized animals presented VN titers ≥0.5UI/mL (geometric medium titers [GMT] 1.7 to 3.8UI/mL). At the day of the booster (360 days post-vaccination); however, the percentage of animals harboring antibody titers ≥0.5UI/mL had dropped to 31%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rabies; Cattle; Vaccines; Neutralizing antibodies.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001000453

Intraocular pressure measurements with the Tono-Pen XL® and Perkins® applanation tonometers in horses and cattle
Provedor de dados: 65
Autores: Andrade,Silvia Franco; Palozzi,Rodrigo de Jesus; Rolim,Rodrigo Duarte; Junqueira,José Ricardo Cecílio; Valle,Heloisa Ferreira do; Silva,Marcelo Kurak da; Maia,Marcelo Augusto; Zampiere,Rodrigo Augusto.
The objective of this study was to compare the accuracy between two applanation tonometers, Tono-Pen XL® and Perkins®, in horses and cattle. The eyes of 20 horses and 20 cattle conscious and healthy were evaluated for the in vivo study and both eyes of 5 horses and 5 cattle were used as controls for the postmortem study. In conscious animals, the tonometry was performed with auriculopalpebral nerve block and then topical anesthesia for both tonometers and 1% fluorescein eye drops only for the Perkins tonometer. Readings of intraocular pressure (IOP) in the postmortem study were taken using manometry and tonometry by Tono-Pen XL® and Perkins®. The correlation coefficient (r²) between manometry and applanation tonometers Tono-Pen XL® and Perkins®, in horses,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Applanation tonometer; Cattle; Horses; Perkins tonometer; Tono-Pen XL tonometer.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013000500018

The mineral consumption and weight gain of grazing steers fed mineral supplements with different sodium contents and physical forms
Provedor de dados: 65
Autores: Ortolani,Enrico Lippi.
Thirty crossbred two-year-old steers, kept on pasture of Braquiaria decumbens, were used in two different experiments of 90 days each. In the first experiment, the steers were randomly assigned in five groups of six steers each to verify the influence of different percentages of sodium chloride (SC) in mineral mix (MM) containing essential macro and microelements (A - 100% SC; B - 80% SC/20% MM; C - 60% SC/40% MM; D - 40% SC/ 60 MM and E - 20% SCl/80 MM) on the consumption of the mineral supplement and the weight gain. In the second experiment, the same steers were reassigned to three groups of 10 animals each to study the effect of mineral salt (40% SC/60% MM) offered loose, partially blocked or as a hard block on the mineral consumption and weight gain....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mineral supplement; Cattle; Sodium; Intake; Physical form; Weight gain; Pasture.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781999000400023

Relationship between clinical and postmortem evaluation in repeat breeder beef cows
Provedor de dados: 65
Autores: Ferreira,Rogério; Oliveira,João Francisco Coelho de; Antoniazzi,Alfredo Quites; Pimentel,Cláudio Alves; Moraes,José Carlos Ferrugem; Henkes,Luiz Ernani; Bordignon,Vilceu; Gonçalves,Paulo Bayard Dias.
The objective of this study was to investigate the causes of the repeat breeder syndrome comparing clinical signs and postmortem findings in beef cows. The identification of factors affecting the reproductive tract can support decisions as to whether treatment of repeat breeder cows is justifiable than culling. Since all animals were submitted to clinical examination before being slaughtered, this study has a differential approach when compared with others, where genital tracts from abattoir were examined. In this study, 130 crossbred cows and heifers that have failed to conceive after three or more services were identified, submitted to a clinical examination and blood collection for karyotyping and sent to an abattoir. postmortem examinations included...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Repeat breeder; Beef cows; Cattle; Infertility; Theriogenology.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782008000400023

Assessing land use by cattle in heterogeneous environments
Provedor de dados: 65
Autores: Sant'Anna,Aline Cristina; Costa,Mateus José Rodrigues Paranhos da; Páscoa,Adriano Gomes; Silva,Lívia Carolina Magalhães; Jung,Jens.
The aim of this note is to describe preliminary results on assessment of land use by cattle, obtained in a pilot study using Geographic Information System (GIS). The research was carried out on a semi-natural pasture in Sweden, where the geographic positions of one cow were recorded during 25 consecutive days during summer. The cow, wearing a GPS collar, was integrated in a herd of 53 Hereford cattle. Each location point registered for the animal was considered as a sampling unit (N=3,097). The spatial distribution of ground declivity, water sources, cattle tracks, and classes of woody vegetation cover (forest, grassland with trees and open grassland) were recorded. The storage, processing and data analysis were carried out using the Idrisi and GS+...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Cattle; Behavior; Geographic Information System; Pasture.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000300470

Etiologic diagnosis of bovine infectious abortion by PCR
Provedor de dados: 65
Autores: Silva,Teane Milagres Augusto da; Oliveira,Raquel Gonzaga de; Mol,Juliana Pinto da Silva; Xavier,Mariana Noyma; Paixão,Tatiane Alves da; Cortez,Adriana; Heinemann,Marcos Bryan; Richtzenhain,Leonardo José; Lage,Andrey Pereira; Santos,Renato de Lima.
Infectious abortion is a significant cause of reproductive failure and economic losses in cattle. The goal of this study was to detect nucleic acids of several infectious agents known to cause abortion including Arcanobacterium pyogenes, Bovine Herpesvirus 1, Brucella abortus, Campylobacter fetus subsp. venerealis, Chlamydophila abortus, Leptospira sp., Listeria monocytogenes, Salmonella sp., Mycoplasma bovis, Mycoplasma bovigenitalium, Neospora caninum, and Tritrichomonas foetus. Tissue homogenates from 42 fetuses and paraffin-embedded tissues from 28 fetuses and 14 placentas/endometrium were included in this study. Brucella abortus was detected in 14.2% (12/84) of the samples. Salmonella sp. DNA was amplified from 2 fetuses, and there was one positive...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Abortion; Brucella abortus; Salmonella sp.; Neospora caninum; Listeria monocytogenes.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782009000900028

A review on the diagnosis infection in cattle of Schistosoma bovis: current status and future prospects
Provedor de dados: 65
Autores: Aradaib,Imadeldin Elamin; Ahdelmageed,Elabbas Mohamed; Hassan,Sanaa Ali; Riemann,Hans Peter.
Bovine schistosomiasis, caused by Schistosoma bovis, is a serious veterinary problem in many parts of the worid. The current methods used for the diagnosis of the disease include clinical signs, pathological lesions, parasitological and serological techniques. As clinical signs and parasitological lesions caused by S. bovis are indistinguishable from those induced by other trematode parasites, confirmation of diagnosis by these methods is unreliable. Parasitological techniques used to demonstrate eggs of the parasite in fecal or tissue samples represent the most accurate method for detection of an active S. bovis infection. The tissue of choice for detection of S. bovis infection is the liver because of the visible macroscopic lesion that can be seen in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Schistosoma bovis; Bovine schistosomiasis; Diagnosis; Cattle.
Ano: 1995
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781995000300029

Typology of beef production systems according to bioeconomic efficiency in the south of Brazil
Provedor de dados: 65
Autores: Canozzi,Maria Eugênia Andrighetto; Marques,Pedro Rocha; Teixeira,Odilene de Souza; Pimentel,Concepta Margaret McManus; Dill,Matheus Dhein; Barcellos,Júlio Otávio Jardim.
ABSTRACT:  The objective of this study was to evaluate the bioeconomic efficiency of beef cattle production systems in the south of Brazil. A survey was conducted with 33 beef cattle farmers operating with complete cycle production systems in areas larger or equal to 900 ha. Answers were classified in two drivers, technology (TEC) and management (MAN), which were separated into subfactors with their respective components. Multiple correspondence analysis, Tukey test, cluster analysis, and Pearson correlation were the statistics procedures. The TEC components were above normal for Brazilian farmers, but the gross margin is still lower than that needed to generate financial resources for a proper remuneration of cattle farmer. Farmers were classified into...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal production; Cattle; Cluster analysis; Production cost.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019001000652

Seroprevalence estimate and associated risk factors for neosporosis in dairy cattle in the northwest region of Rio Grande do Sul State, Brazil
Provedor de dados: 65
Autores: Gindri,Patrícia Carvalho; Mion,Bruna; Pradieé,Jorgea; Bialves,Tatiane Senna; Souza,Guilherme Nunes de; Dellagostin,Odir Antônio; Schneider,Augusto; Pegoraro,Lígia Margareth Cantarelli.
ABSTRACT:  The aim of this study was to estimate neosporosis seroprevalence and its associated risk factors in milk herds (Bos taurus taurus) located in the northwestern region of Rio Grande do Sul State, Brazil. Three hundred twenty-two blood samples were collected from dairy cows on 18 farms in 17 cities of this region. An epidemiologic questionnaire was completed for each farm. It consisted of questions about the general characteristics of the herd, reproduction, and animal management. Serum samples were tested for Neospora caninum using a commercial enzyme-linked immunosorbent assay (ELISA) kit. Results indicated a seroprevalence of Neospora in 88.9% (16/18) of herds and 31.1% (100/322) of individuals. Risk factor analyses demonstrated that culling by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Neospora caninum; Reproductive diseases.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000700500

Lissencephaly-pachygyria and cerebellar hypoplasia in a calf
Provedor de dados: 65
Autores: Santos,Bianca Lemos dos; Damé,Maria Cecília Florisbal; Coelho,Ana Carolina Barreto; Oliveira,Plínio Aguiar; Marcolongo-Pereira,Clairton; Schild,Ana Lucia.
ABSTRACT: A case of lissencephaly-pachygyria and cerebellar hypoplasia diagnosed in a Charolais x Tabapuã calf is described. The calf presented since birth, clinical signs characterized by apathy, prolonged recumbency, tremors of the head and neck, ataxia, hypermetria, difficulty walking, blindness and swelling of the joints of the four limbs. Due to the unfavorable prognosis, the animal was euthanized and necropsied at 34 days of age. At necropsy, a rudimentary development of the brain folds (gyri) and grooves (sulci) was observed, and the cerebellum was hypoplastic. The cut surface of the brain exhibited thickening of the gray matter (pachygyria) in the frontal, parietal, temporal and occipital cortices and narrowing of the white matter. In the organs of...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Lissencephaly; Pachygyria; Cerebellar hypoplasia; Congenital malformation; Cattle.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000901622

Isolation and identification of Mycobacterium bovis in milk from cows in northeastern Brazil
Provedor de dados: 65
Autores: Ramos,Joelson Marcolino; Heinemann,Marcos Bryan; Ferreira Neto,José Soares; Filho,Antônio Francisco de Souza; Cárdenas,Nicolás Céspedes; Alves,Clebert José; Azevedo,Sérgio Santos de.
ABSTRACT: Milk samples from 16 cows that tested positive on the tuberculin test in the state of Paraíba, northeastern Brazil, were used for mycobacteria isolation and identification. Mycobacteria were isolated from five (31.25%) of the 16 milk samples; three samples were classified as M. bovis, and two as belonging to the Mycobacterium genus. This is probably the first study of isolation and identification of M. bovis in milk from cows in Northeastern Brazil, which suggests that humans are at risk of contamination by ingestion.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Mycobacterium bovis; Isolation; Milk; PCR; Cattle.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001202166

The measurement of urine pH to predict the amount of buffer used in the treatment of acute rumen lactic acidosis in cattle
Provedor de dados: 65
Autores: Maruta,Celso Akio; Leal,Marta Lizandra do Rego; Mendes Netto,Daniel; Mori,Clara Satsuki; Antonelli,Alexandre Coutinho; Ortolani,Enrico Lippi.
The purpose of the present study was to establish a practical, fast, precise and low-cost procedure to estimate the degree of metabolic acidosis in cattle with acute rumen lactic acidosis for further treatment. The rumen acidosis was induced experimentally in 40 crossbreed rumen-cannulated 1.5-year-old steers. The induction caused the development of the most characteristic clinical signs of acute rumen lactic acidosis, severe rumen acidosis and a moderate metabolic acidosis, which was evidenced by low blood pH, and blood bicarbonate concentration and base excess (BE). A highly positive correlation (r=0.80) between urinary pH and BE concentration, and between urinary pH and blood pH (r=0.75) was observed. The BE concentration estimated by urinary pH was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lactic acidosis; Urine pH; Cattle; Base excess; Treatment.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782008000300019

What is the best temperature-humidity index equation to indicate heat stress in crossbred dairy calves in a tropical environment?
Provedor de dados: 65
Autores: Nascimento,Fernanda Gatti de Oliveira; Aguiar,Hellen Cris Pinto; Rodrigues,Gustavo Moya; Guimarães,Ednaldo Carvalho; Nascimento,Mara Regina Bueno de Mattos.
ABSTRACT: The aim of this study was to determine among nine temperature-humidity index (THI) equations, the one that best represents the effects of heat stress on crossbred dairy calves reared in a tropical environment. Twelve male and female calves, aged 20 to 60 days, and raised in a tropical pen were evaluated. Respiratory (RR) and heart rates (HR), rectal (RT), body surface (BST), dry bulb (Tdb) and wet bulb (Tbw) temperatures, partial vapor pressure (Pv), relative humidity (RH) and dew point temperature (Tpo) were quantified in the morning and afternoon. Nine THI equations were calculated. The highest correlation between physiological variables and this was used to select the best THI equation. Averages for nine THI equations, Tdb, Twb, Pv, Tdp, RR,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Comfort; Dairy; Thermal index.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000100652

Isolation of Leptospira spp from dogs, bovine and swine naturally infected
Provedor de dados: 65
Autores: Freitas,Julio Cesar de; Silva,Francielle Gibson da; Oliveira,Rosângela Claret de; Delbem,Ádina Cléia Botazzo; Müller,Ernst Eckehardt; Alves,Lucimara Aparecida; Teles,Paulo Sergio.
Leptospira isolation allows definitive diagnosis of the infection. Contamination by microorganisms is one of the inconveniences of the culture. The objective of this study was to describe the isolation of Leptospira from dogs, bovine and swine naturally infected. Urine samples from 14 dogs and three bovines, and kidney, liver, ovary, and uterus body samples from 36 slaughtered sows with unknown health history, were used. The urine and organ samples were cultured in culture medium. Modified Ellinghausen-McCullough-Johnson-Harris medium (EMJH) culture medium was used with addition of 5-fluorouracil, chloramphenicol, vancomycin, nalidixic acid and neomycin. Incubation was performed at 28oC for 24 hours, followed by subculture in modified EMJH without...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Leptospirosis; Diagnostic; Culture; Cattle; Dog; Swine.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782004000300030

Methods of inducing conditioned food aversion to Baccharis coridifolia (mio-mio) in cattle
Provedor de dados: 65
Autores: Almeida,Milton Begeres de; Schild,Ana Lucia; Pfister,James; Pimentel,Marcelo; Forster,Karine Maciel; Correa,Franklin Riet.
Three experiments were performed to determine the efficacy of various methods of averting naïve cattle to prevent Baccharis coridifolia poisoning: forced oral administration of 0.5g kg-1 body weight of fresh B. coridifolia; forced inhalation of the smoke from burning B. coridifolia and rubbing the plant on the animals' muzzles and mouths; and introducing the animals into paddocks with low invasion by B. coridifolia. Results demonstrated that cattle forced to ingest low doses become strongly averted if introduced into paddocks 23-26 hours after the aversion. In contrast, cattle introduced into the paddocks between 1-10 hours were not fully averted. Inhalation of B. coridifolia smoke, and rubbing the plant on the animals' muzzles and mouths were not...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Baccharis coridifolia; Cattle; Food-conditioned aversion; Plant poisoning control.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013001000022

Metastasizing oral melanoma in a cow
Provedor de dados: 65
Autores: Brito,Marilene de Farias; França,Ticiana Nascimento; Jabour,Flávia Figueiraujo; Seixas,Josilene Nascimento; Andrade,Gisele Braziliano; Oliveira,Laura Iglesias; Peixoto,Paulo Vargas.
A malignant dendritic melanoma of the oral cavity with metastases widely spread in a cow is described. The clinicopathological manifestations, developed during a two-year period, was characterized by the difficulty in mastication and swallowing, progressive weight loss, weakness and profuse sialorrhea. At the necropsy, an ulcerated black mass was found at the left jaw projecting into the oral cavity. The tumor reached the chin, inferior lip and tongue. Metastases were detected within the tongue, parotid gland, lymph nodes, trachea, thyroid, pleura, lungs, heart, peritoneum, omentum, and serosal membranes of the forestomach and abomasum, liver, and intima of some hepatic vessels, mammary gland, and muscles and fasciae of the left hind leg. No reference to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oral dendritic melanoma; Cattle; Pathology; Neoplasm.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782009000400045

Granulomatous myelitis associated with hemorrhagic syndrome due to consumption of Vicia villosa by cattle
Provedor de dados: 65
Autores: Sonne,Luciana; Raymundo,Djeison Lutier; Antoniassi,Nadia Aline Bobbi; Bandarra,Paulo Mota; Almeida,Paula Rodrigues de; Vaz Júnior,Itabajara da Silva; Driemeier,David.
An unusual case of spontaneous Vicia villosa poisoning affected a 6-year-old Holstein cow. Although the most striking findings included a generalized hemorrhagic condition associated with granulomatous myelitis, histological lesions typically seen with the vetch-associated systemic granulomatous syndrome were also present. Prominent gross findings were bloody nasal and oral discharges, disseminated hemorrhages, and bloody feces. Generalized hemorrhages associated with infiltration of numerous organs by lymphocytes, plasma cells, macrophages, multinucleated giants cells, and eosinophils were the main microscopic findings. Anti-CD68 immunostaining confirmed the presence of moderate histiocytic infiltrate and multinucleated giant cells in the bone marrow....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant poisoning; Cattle; Vicia villosa; Hemorrhagic disease; Granulomatous inflammation.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010000800030

Anti-Neospora caninum antibodies in beef cattle from the northern region of Paraná state, Brazil
Provedor de dados: 65
Autores: Guerra,Joice Loures; Okano,Werner; Bogado,Alexey Leon Gomel; Nino,Beatriz de Souza Lima; Martins,Felippe Danyel Cardoso; Cardim,Sérgio Tosi; Barros,Luiz Daniel de; Garcia,João Luis.
ABSTRACT:  The presence of anti-Neospora caninum antibodies in beef cattle slaughtered in the northern region of the state of Paraná, Brazil, was evaluated. A total of 401 blood samples were collected; 281 samples from the municipality of Rolândia and 120 from the municipality of Borrazópolis, between April 2015 and November 2016. Of the total samples, 289 were from females and 112 from males, aged one and a half to eight years. Indirect fluorescent antibody test (IFAT) was performed, using a cut-off of 1:100. Variables were tabulated for statistical analyses (Fisher’s exact test and chi-square tests, p≤0.05). The analysis showed that of the 401 samples, 37 were positive for N. caninum, indicating a prevalence of 9.2 %, and observed titers were 1:100 (16),...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neosporosis; Seroprevalence; IFAT; Cattle; Paraná state.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000500500

Variables on the blood inorganic sulphate concentration in cattle
Provedor de dados: 65
Autores: Ortolani,Enrico Lippi; Barreto Júnior,Raimundo Alves; Sucupira,Maria Cláudia Araripe; Maruta,Celso Akio.
Fourteen healthy yearling Holstein steers were used to study the influence of the levels of hemolysis and serum storage at different temperatures (4º C, -10ºC and at room temperature) on serum inorganic sulphate concentrations. The correlation of inorganic sulphate concentration between plasma and serum was also compared. Three different levels of hemolysis were obtained by adding distilled water to the blood. Precision studies were undertaken to determine the viability of the turbidimetric technique used to measure the inorganic sulphate concentration. No difference in the inorganic sulphate concentration was found between serum and plasma (p&gt;0.91), between serum kept at different temperatures (p&gt;0.87) and between hemolysed and normal serum...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Inorganic sulphate; Serum; Blood tests; Sulphur; Cattle.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782001000300010

Progesterone production in superovulated holstein heifers and in crossbred recipient of embryo supplemented with betacarotene and tocopherol
Provedor de dados: 64
Autores: Sales,José Nélio de Sousa; Dias,Lilian Mara Kirsch; Franci,Celso Rodrigues; Rocha,Alexandro Aluísio; Cardoso,Guilherme Gastão; Souza,José Camisão de.
Two experiments were conducted to evaluate the effect of the intramuscular injection of betacarotene associated to tocopherol on the plasma concentration progesterone of superovulated Holstein heifers (experiment 1) and in crossbred (Bos taurus x Bos indicus) heifers submitted to fixed-time embryo transfer (FTET, experiment 2). In experiment 1, after estrus synchronization and superovulation animals were inseminated 12 and 24 hours after estrus onset and embryos flushed 7 days later. Heifers were allocated randomly to one of three treatments: Control; T800 (800 mg of betacarotene plus 500 mg of tocopherol) and T1200 (1,200 mg of betacarotene plus 750 mg of tocopherol). The treatments were given on the day of ear implant placement and repeated on the first...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vitamin; Reproduction; Cattle; Embryo transfer.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000400023